Giant Control Blast 1 CO2 Inflation Kit

Giant's Control Blast 1 CO2 Inflation Kit consists of an inflator head that fits Presta valves, a cartridge sleeve, and a 16-gram CO2 threaded cartridge. It also accepts 12-, 16-, 20- and 25-gram threaded CO2 cartridges. The head features controllable air release so you can fine-tune your pressure.