A pump for inflating tires.

To operate, remove the dust cap on your tire valve, press the pump nozzle firmly over the tire valve, fold down the small lever and begin pumping until the gauge shows the same pressure as is written on your tire. To remove, just flip the small lever back up and pull the nozzle off, replacing the dust cap afterwards.

A twin-chamber foot pump. Other models may only have one chamber.

Pump nozzle fitted to the tire valve.