Used Apex Electric Screwdriver for sale (30,206)

Condition: used, functionality: fully functional, Year of construction: 2018, operating hours: 3,905 h, load capacity: 2,000 kg, fuel type: electric, fork length: 1,150 mm, drive type: Elektro, Low-lift pallet truck Iedoruybvopfx Anmoba Load center: 600 Technical condition: good Battery voltage: 24V Battery capacity: 400Ah Description: Prices are quoted ex warehouse, excluding freight and VAT. No warranty/guarantee and no returns. Inspection possible by arrangement. Our general terms and conditions apply. 13/8.26: According to the documentation, is the battery defective?! Includes: creep speed, platform manually foldable, transistor control, high performance 8.0 km/h, mechanical steering, lifting height suitable for pallets, PIN code, with load protection grid, safety arch, E-bar, tandem Vulkollan fork rollers, medium battery compartment.

Condition: used, Year of construction: 2018, functionality: fully functional, power: 500 kW (679.81 HP), nominal power: 500 kW (679.81 HP), rotational speed (min.): 1,490 rpm, input voltage: 500 V, input frequency: 50 Hz, input current: 692 A, type of input current: three-phase, overall weight: 2,500 kg, type of cooling: air, protection type (IP code): IP55, ABB AC Motor Construction: IM1001-B3 Standard: IEC60034-1 Ibsdpozt Sc Ijfx Anmoa Temperature Class: F IP Rating: IP55 Service Class: S1 Power Factor: 0.86 Frequency: 50 Hz

Condition: used, machine/vehicle number: 8148, Year of construction: 2009, operating hours: 8,283 h, load capacity: 1,800 kg, lifting height: 4,620 mm, fuel type: electric, mast type: triplex, construction height: 2,120 mm, .: 8148 Device details: Year of manufacture: 2009 Load capacity: 1800 kg Lifting height: 4620 mm Recorded operating hours: 8283 h Ijdszub Ivjpfx Anmoba Mast type: Triplex Mast height: 2110 mm Length/Width/Height: 3000 / 1250 / 2120 mm Operating weight: 3780 kg Additional device information: ---- The operating hours are generally the recorded hours. We would be happy to offer you suitable transport. We have another 250 - 300 forklifts, attachments, and sweepers immediately available for you. Of course, also for rent! We would be happy to buy your OLD one. Do you have any questions? You can reach us during our business hours from 7:30 a.m. to 4:00 p.m. We look forward to hearing from you! We speak English. Subject to prior sale and errors for this offer. In dealer sales, the device is sold in its current condition, without any refurbishment. All information without guarantee, subject to errors and changes.

Condition: used, functionality: fully functional, Year of construction: 1995, operating hours: 2,800 h, load capacity: 1,500 kg, lifting height: 3,200 mm, free lift: 150 mm, fuel type: electric, mast type: simplex, drive type: Elektro, Electric 4-wheel forklift Load center: 500 ISO class: ISO Class 3 = 2,500 - 4,999 kg Mast type: Quattro Technical condition: good Front tire type: Superelastic Front tire condition: 20 - 40% Rear tire type: Superelastic Rear tire condition: 20 - 40% Ibjdpfxjzuhhcj Anmsa Battery type: PzS Side shifter, 3rd valve, rear work light, front work light.

Condition: used, functionality: fully functional, Year of construction: 2021, operating hours: 1,384 h, load capacity: 1,800 kg, lifting height: 4,620 mm, free lift: 1,500 mm, fuel type: electric, mast type: triplex, construction height: 2,150 mm, drive type: Elektro, Electric 3-wheel forklift Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: Ready for use and fully functional Isdpjzuhg Sefx Anmjba Technical condition: good Front tire type: Non-marking Front tire condition: 60 - 80% Rear tire type: Non-marking Rear tire condition: 40 - 60% Battery voltage: 48V Battery capacity: 625Ah Battery type: PzS Battery year of manufacture: 2021 Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, windshield, heater, full cabin, full free lift, safety light, joystick, LED, 3-wheel, seat.

Condition: used, functionality: fully functional, Year of construction: 2023, operating hours: 1,151 h, load capacity: 5,000 kg, lifting height: 5,060 mm, free lift: 1,500 mm, fuel type: electric, mast type: triplex, construction height: 2,600 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 600 ISO class: ISO Class 3 = 2,500 - 4,999 kg Mast type: Triplex Condition: Ready for use and fully functional Technical condition: very good Front tire type: Non-marking Ibsdpfx Anszuhgxemja Front tire condition: 60 - 80% Rear tire type: Non-marking Rear tire condition: 40 - 60% Battery voltage: 80V Battery capacity: 930Ah Battery year of manufacture: 2022 Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, heater, load guard, full cabin, full free lift, joystick, LED.

Condition: used, mileage: 207,417 km, power: 125 kW (169.95 HP), fuel type: diesel, gearing type: mechanical, first registration: 03/2015, emission class: euro6, color: other, number of seats: 24, Year of construction: 2015, Equipment: ABS, = Additional Options and Accessories = Ibodpfx Asztw N Hjnmja - Air conditioning for the driver - Webasto = Additional Information = Height: 290 cm Damage: none = Company Information = We are an international company based in Belgium, in the vicinity of Brussels (+/-20 km). Belgian Bus Sales is your ideal partner for the buying and selling of used buses and has a large parking area that serves as an exhibition space. We always have numerous buses of all brands, capacities, and models in stock, covering every price range. We can find the right tour, school, or public transport bus for you, tailored to your needs or budget. All information is provided without guarantee. Errors, prior sale, and typos excepted. Opening hours for viewing the used buses: Mon-Fri: 08:30 - 12:00, 12:30 - 17:00. (Mowimy po Polsku Agata) We speak your language: Dutch, French, English, Spanish, Portuguese, Italian, Russian, Polish, and more.

Condition: used, functionality: fully functional, Year of construction: 2018, operating hours: 1,689 h, load capacity: 4,000 kg, lifting height: 4,500 mm, fuel type: electric, mast type: simplex, construction height: 3,040 mm, fork length: 2,200 mm, drive type: Elektro, Electric 4-wheel forklift ISO class: ISO Class 3 = 2,500 - 4,999 kg Mast type: Standard Transmission: Automatic Condition: Refurbished, without warranty Ibjdpfozt Ttzsx Anmja Technical condition: Very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Battery voltage: 80V Battery type: PzS Battery year of manufacture: 2018 Description: Price includes a new UVV inspection. The paintwork is in like-new condition. This is a former rental unit from Jungheinrich. The battery will be regenerated using a power cycler, including a Kappa test. Charger included with appropriate plug. We will gladly arrange cost-effective transport for you. A lease-purchase option is generally available. We are an official Jungheinrich partner. Side shifter, 3rd valve, rear work light, front work light, heater, full cabin, CE certificate.

Condition: defective spare-parts repository (used), Year of construction: 2009, operating hours: 2,000 h, functionality: limited functionality, machine/vehicle number: 870420, Electrically heated recirculation oven. Control system is defective. Repair offer is available. The control system needs to be repaired and the seals need to be replaced. Dimensions: width 2700 x length 2500 x height 1200 mm. Usable volume: 7.4 m3. Steam chamber: 10 m3. Heating capacity: 180 kW. Maximum temperature: 600°C. Max. air volume flow: 5000 m3/h. The oven also features a car bottom for loading/unloading and a wide, split door. The oven has seen little use. It is currently dismantled and in storage. Iedpfx Anjxnx E Ssmoba

Condition: new, functionality: fully functional, Year of construction: 2026, fuel type: electric, front tire type: cushion tires (non-marking), rear tire type: cushion tires (non-marking), total width: 2,150 mm, Equipment: CE marking, New electric forklift Voltforce 2 ton | 4.5 meters | Side shift + fork positioner Ibsdpfx Aoztpwisnmoa New electric forklift from Voltforce, available for immediate delivery from stock. A very complete and powerful machine with maintenance-free batteries, side shift, and fork positioner. Ideal for warehouses, workshops, logistics, and daily professional use. Specifications • Lifting capacity: 2000 kg • Lifting height: 4.5 meters • Brand: Volt Force • Type: CPD-20 • Electric • 60 Volt system • Maintenance-free battery • Including battery charger • Charging via 230 Volts • Intermittent charging possible • Operating time approximately 5–6 hours • Side shift • Fork positioner • Solid rubber tires • Compact model – only 1.20 m wide • Mast height 2.15 m • Travel speed 14 km/h • Very maneuverable and smooth driving performance • Good lighting + work lights • Reverse alarm + blue light • Turn signals and brake lights • CE certified • Available in other colors and weight classes upon request • 2-year manufacturer's warranty Why choose this Voltforce? - Maintenance-free technology - Low operating costs - Suitable for indoor and outdoor use - Easy charging via a standard power outlet - Excellent price-quality ratio - Good service - Immediately ready for use Price 2 Ton electric forklift € 9,500 excl. VAT Price 2.5 Ton electric forklift € 9,750 excl. VAT Fast delivery Transportation is possible upon request. For more information or to arrange a viewing, please send an email or contact us.

Condition: new, functionality: fully functional, This listing serves exclusively for informational purposes and does not constitute a legally binding offer. The KINGWAY WE500 electric wheelbarrow is a modern and environmentally friendly solution for the fast and comfortable transport of materials in demanding conditions. Thanks to its compact dimensions and well-thought-out design, the WE500 is ideal for use in narrow passages, gardens, construction sites, warehouses, and many other locations where mobility and safety are crucial. TECHNICAL DATA: Model: DR-MD-02 Maximum working time: 8–10 hours Brake system: Electromagnetic brake Loading volume (L × W × H): 1050 × 720 × 400 mm Charging time (from full discharge): approx. 12 hours Travel speed (forward/reverse): 5.0 / 3.0 km/h Wheels: Front: 16×5.5-8, tubeless Rear: 13×5-8, tubeless Gross/net weight: 723 / 715 kg Transport dimensions: 1340 × 830 × 880 mm Maximum load capacity: 500 kg Motor power: 1000 W / 48 V Battery: 4 × 12 V, 32 Ah Free 12-month warranty – after this period, we offer all spare parts as well as professional service if required. PRICE: Ibsdpfx Aneyk S Rbjmja €1,600 NET €1,904 GROSS

Condition: new, functionality: fully functional, machine/vehicle number: FEP100N2YNEU, Year of construction: 2025, load capacity: 10,000 kg, lifting height: 4,800 mm, free lift: 1,720 mm, mast type: triplex, construction height: 3,030 mm, power: 37 kW (50.31 HP), fork carriage width: 2,165 mm, fork length: 2,440 mm, empty load weight: 16,040 kg, total length: 3,795 mm, drive type: Lithium-Ionen, construction width: 2,165 mm, Electric 4-wheel forklift Chassis number: FEP100N2YNEU Load center: 600 Ibodpfx Aey Up Tpenmea Fork width: 175 mm Fork thickness: 80 mm ISO class: ISO Class 4 = 5,000 - 10,000 kg Mast type: Triplex Speed class: 15 Condition: New Technical condition: New Front tire type: Superelastic Front tire condition: New Rear tire type: Superelastic Rear tire condition: New Battery voltage: 76V Battery Ah: 920Ah Battery type: Lithium-ion Battery year of manufacture: 2025 Battery condition: New Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, heater, load guard, full cabin, air conditioning, CE certificate, dual tires, safety light, non-marking tires, lithium-ion technology, interior mirror, exterior mirror, windshield wiper, LED, seat

Condition: new, functionality: fully functional, machine/vehicle number: 4317, Year of construction: 2025, load capacity: 5,500 kg, lifting height: 4,800 mm, free lift: 1,109 mm, fuel type: electric, mast type: triplex, construction height: 2,350 mm, power: 29 kW (39.43 HP), fork length: 1,200 mm, empty load weight: 8,120 kg, total length: 3,235 mm, drive type: Elektro, construction width: 1,490 mm, Electric 4-wheel forklift Chassis number: 4317 Load center: 500 mm ISO class: ISO Class 4 = 5,000 - 10,000 kg Mast type: Triplex Condition: New machine Technical condition: New Front tires type: Super elastic Front tires condition: New Rear tires type: Super elastic Rear tires condition: New Battery voltage: 153V Battery capacity: 210Ah Isdjy Up Rnjpfx Anmeba Battery type: Lithium-ion Battery year: 2025 Battery condition: New Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, cabin heater, load guard, full cab, CE certificate, safety light, non-marking tires, lithium-ion technology, exterior mirrors, wiper, LED, seat,

Condition: used, weight max. in kg 1000 kg Iodpeztz R Iefx Anmjba fork length 1150 mm stroke height 2820 mm high 2000 mm weight of the machine ca. 0,45 t dimensions 1,7 x 0,7 x 2,0 m Pallet truck with - charger - electric lift - manual drive

Condition: used, functionality: fully functional, Year of construction: 2018, operating hours: 7,950 h, load capacity: 2,500 kg, lifting height: 5,390 mm, free lift: 1,720 mm, fuel type: electric, mast type: triplex, construction height: 2,475 mm, fork carriage width: 1,150 mm, fork length: 1,200 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 600 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Ibedozt Dvaepfx Anmsa Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Battery voltage: 80V Battery capacity: 620Ah Battery type: PzS Battery year of manufacture: 2018 Battery condition: 80 - 100% Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV). Completely repaired, serviced, and checked. Side shifter, fork positioner, 3rd valve, 4th valve, front work light, safety light, joystick, LED.

Condition: used, functionality: fully functional, Year of construction: 2019, operating hours: 4,357 h, load capacity: 3,000 kg, lifting height: 4,590 mm, free lift: 1,540 mm, fuel type: electric, mast type: triplex, construction height: 2,175 mm, fork carriage width: 1,180 mm, fork length: 1,200 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 500 ISO class: ISO Class 3 = 2,500 - 4,999 kg Mast type: Triplex Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Battery voltage: 80V Battery capacity: 620Ah Battery type: PzS Battery year of manufacture: 2017 Battery condition: 80 - 100% Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV). Completely repaired, serviced and checked. Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, heater, full cabin, safety light, rotating beacon. Iedpfxjzt Du Nj Anmeba

Condition: used, functionality: fully functional, Year of construction: 2019, operating hours: 3,850 h, load capacity: 2,500 kg, lifting height: 5,190 mm, free lift: 1,600 mm, fuel type: electric, mast type: triplex, construction height: 2,375 mm, fork carriage width: 1,150 mm, fork length: 1,200 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Iodpjzt Du Ajfx Anmjba Battery voltage: 80V Battery capacity: 620Ah Battery type: PzS Battery year of manufacture: 2019 Battery condition: 80 - 100% Description: Overhauled, serviced and inspected according to FEM 4.004 (UVV). Completely repaired, serviced and checked. Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, heater, full cabin, safety light, joystick, rotating beacon.

Condition: used, functionality: fully functional, Year of construction: 2015, operating hours: 4,071 h, load capacity: 3,000 kg, lifting height: 3,290 mm, free lift: 1,500 mm, fuel type: electric, mast type: duplex, construction height: 2,275 mm, fork carriage width: 1,100 mm, fork length: 1,200 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 500 ISO class: ISO Class 3 = 2,500 - 4,999 kg Mast type: Duplex Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Battery voltage: 80V Battery capacity: 775Ah Battery type: PzS Battery year of manufacture: 2019 Battery condition: 80 - 100% Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV). Completely repaired, serviced and checked. Side shifter, fork positioner, Ibedpfx Anjzt Duvjmea 3rd valve, 4th valve, rear work light, front work light, heater, full cabin, safety light, joystick, rotating beacon.

Condition: used, functionality: fully functional, Year of construction: 2015, operating hours: 960 h, load capacity: 2,500 kg, lifting height: 6,040 mm, free lift: 2,100 mm, fuel type: electric, mast type: triplex, construction height: 2,725 mm, fork carriage width: 1,150 mm, fork length: 1,200 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Battery voltage: 80V Battery Ah: 620Ah Battery type: PzS Battery year of manufacture: 2020 Battery condition: 80 - 100% Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV). Completely repaired, serviced and checked. Isdpfxozt Dupo Anmoba Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, heater, full cabin, safety light, rotating beacon.

Condition: used, functionality: fully functional, Year of construction: 2016, operating hours: 6,085 h, load capacity: 2,500 kg, lifting height: 4,890 mm, free lift: 1,650 mm, fuel type: electric, mast type: triplex, construction height: 2,275 mm, fork carriage width: 1,040 mm, fork length: 1,200 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: Refurbished, no warranty Ibsdpfx Anszt Duiomea Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Battery voltage: 80V Battery Ah: 620Ah Battery manufacturer: 94% remaining capacity Battery type: PzS Battery year of manufacture: 2018 Battery condition: 80 - 100% Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV). Completely repaired, serviced, and checked. Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, roof protection, windshield, safety light, joystick.

Condition: used, functionality: fully functional, Year of construction: 2010, operating hours: 7,344 h, load capacity: 1,600 kg, lifting height: 4,650 mm, free lift: 1,470 mm, fuel type: electric, mast type: triplex, construction height: 2,060 mm, fork carriage width: 980 mm, fork length: 1,200 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Iedpfx Aszt Duconmjba Rear tire type: Superelastic Rear tire condition: 80 - 100% Battery voltage: 48V Battery capacity: 625Ah Battery type: PzS Battery year of manufacture: 2018 Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV). Completely repaired, serviced, and checked - without any warranty. Side shifter, 3rd valve, rear work light, front work light, roof protection, windshield, heater, full cab.

Condition: used, functionality: fully functional, Year of construction: 2019, operating hours: 4,090 h, load capacity: 2,500 kg, lifting height: 6,040 mm, free lift: 1,910 mm, fuel type: electric, mast type: triplex, construction height: 2,725 mm, fork carriage width: 1,150 mm, fork length: 1,200 mm, drive type: Elektro, Electric four-wheel forklift Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Front tire size: Brand new Front tire condition: New Rear tire type: Superelastic Rear tire size: Brand new Rear tire condition: New Battery voltage: 80V Battery capacity: 620Ah Battery manufacturer: 86% remaining capacity Battery type: PzS Battery year of manufacture: 2019 Battery condition: 80 - 100% Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV). Completely repaired, serviced, and checked. Ijdpfozt Dt Sex Anmjba Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, heater, full cabin, safety light, joystick, rotating beacon, LED.

Condition: used, functionality: fully functional, Year of construction: 2010, operating hours: 8,158 h, load capacity: 1,600 kg, lifting height: 4,670 mm, free lift: 1,470 mm, fuel type: electric, mast type: triplex, construction height: 2,060 mm, fork carriage width: 980 mm, fork length: 1,200 mm, drive type: Elektro, Electric 4-wheel forklift Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Battery voltage: 48V Battery capacity: 625Ah Battery type: PzS Battery year of manufacture: 2018 Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV). Completely repaired, serviced, and checked - without any warranty. Side shifter, Ibodpfx Ajzt Dt Eenmoa 3rd valve, rear work light, front work light, roof cover, windshield.

Condition: used, functionality: fully functional, Year of construction: 2013, operating hours: 10,560 h, load capacity: 1,600 kg, lifting height: 4,620 mm, free lift: 1,440 mm, fuel type: electric, mast type: triplex, construction height: 2,060 mm, fork carriage width: 980 mm, fork length: 1,200 mm, drive type: Elektro, Electric four-wheel forklift Isdpfx Ajzt Dtxonmoba Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Front tire condition: 80 - 100% Rear tire type: Superelastic Rear tire condition: 80 - 100% Battery voltage: 48V Battery Ah: 625Ah Battery type: PzS Battery year of manufacture: 2019 Battery condition: 80 - 100% Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV) // Completely repaired, serviced and checked Side shifter, 3rd valve, rear work light, front work light, roof protection, windshield

Condition: used, functionality: fully functional, Year of construction: 2017, operating hours: 1,921 h, load capacity: 1,600 kg, lifting height: 4,920 mm, free lift: 1,562 mm, fuel type: electric, mast type: triplex, construction height: 2,160 mm, fork carriage width: 980 mm, fork length: 1,200 mm, drive type: Elektro, Electric 3-wheel forklift Load center: 500 ISO class: ISO Class 2 = 1,000 - 2,500 kg Mast type: Triplex Condition: Refurbished, no warranty Technical condition: very good Front tire type: Superelastic Rear tire type: Superelastic Battery voltage: 48V Battery capacity: 625Ah Battery type: PzS Battery year of manufacture: 2017 Description: Overhauled, serviced, and inspected according to FEM 4.004 (UVV). Completely repaired, serviced and checked. Side shifter, fork positioner, 3rd valve, 4th valve, rear work light, front work light, heater, full cabin, safety light. Ibsdszt Dtropfx Anmsa