An extremely compact, lightweight and easy-to-use CO2 inflator. Precision CNC machined aluminum inflator fits Presta and Schrader valves and works with threaded 16g or 25g cartridges. Simply screw the cartridge in tight and then screw the head onto the valve, unscrew the cartridge to release all the gas from the CO2 cartridge in seconds. Included CO2 Cartridge Shell protects your hands from cold cartridges during inflation.Specifications:- Head: Presta / Schrader valves- Material: CNC aluminum- Size: 2.8 x 1.5 x 1.5 cm / 1.1 x 0.59 x 0.59- Weight: 8.2 g / 0.29 oz (w/o CO2 cartridge)- Added Features: 1pc threaded 25g CO2 cartridge and shell includedInflation: - Fits Presta and Schrader valves.- Works with threaded 16g or 25g cartridgesDual Function Use With Insertion Tool:- Repair and inflate tubeless tires in one quick step