Kulaipu High-Power Dual-Cylinder Air Pump, Tire Inflator for Trucks And Off-Road Vehicles (Dual 60-Cylinder with Dial Gauge)

1. Start your vehicle to ensure sufficient power supply

2. Connect the red wire to the positive terminal of the battery

3. Connect the black wire to the negative terminal of the battery

4. Start the vehicle to prevent battery drain

5. Connect to the car tire

6. Press the pump switch

7. Close the switch when the gauge reaches the desired pressure