... bag, pump nozzle alignment tire filling valve, nozzle tighten in a clockwise direction.2, insert the 12V cigarette ... get to work. Inflatable watch barometer pressure, the tire will be under pressure to switch to the "OFF ... the products cannot be used in large trucks; 2)when you use it you should start car's ... pressure is blocked, the air does not enter the tire, turn off the power, remove the gas nozzle ...