Ultra compact CO2 inflator "Nano Air Booster" CO2 inflator with a structure that releases gas by screwing the CO2 cartridge clockwise to open the hole, then rotating it halfway counterclockwise. Fits Presta / Schrader base Cutting aluminum alloy head compatible with Presta and Schrader models with toppeak screws, compatible with 0.6 oz (16 g) / 0.9 oz (25 g) CO2 cartridge shell, 1 piece L1.1 x W15 x H15 mm (nano air booster only). Weight: 0.3 oz (8 g) (nano air booster only). *Please wear gloves when using to prevent injury. The CO2 cartridge included is disposable. Cannot be stored after use.