Portable Bike Air Pump - Dual Valve (French/American) for Bicycle Tires - Compact & Lightweight Bicycle Tire Inflator - Ideal for Road Bikes, Mountain Bikes & Commuting (Red)

GFHFG Gas mouth: Schrader valve, Presta valveApplication: CO2 cylinder with threadSuitable for: Road bike, mountain bikecolour: redMaterial: aluminum alloy + spongesize: 4x4.2cmPackage Contents:1 x inflatable head1 x protective coverOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

2. It can control the output. During the inflation process, the thread tension can be adjusted to control the output (the gas cylinder should be up at one time, and it cannot be twice to avoid danger)

1. Screw the pump head on the cylinder to inflate the tires quickly and easily.(without cylinder)

3. Distribution sponge cover. During the use, low-temperature gas will be released, which will easily frostbite the hands. The sponge cover can effectively reduce the injury caused by the freeze gas cylinder and a certain cushioning effect (recommended to wear gloves when using to prevent frostbite)