What's in the box:

CO2 Inflator for Bike Tire Bicycle Pump Nozzle Inflator Nozzle Cylinder Valve (Standard)

Features:
Compatible with Americans air nozzles and Frenchs air nozzles, not easy to leak.
Air volume adjustment knob.
Thimble after special treatment, not easy to damage.
Light weight, easy to carry, cycling can be used anytimes and anywhere.
Controlled gases displacement.

Specifications:
Color: black
Material: Aluminum alloy
Item weight: 23g / 0.8ounce
Package size: 100 * 80 * 30mm / 3.9 * 3.1 * 1.2in
Package weight: 50g / 1.8ounce

Packing List:
1 * Cylinder Valve