Easy to use with built in safety feature and trigger inflation works with all genuine innovations co2 refill cartridges except 45 gram comes with one 16g non threaded co2 cartridge features uses genuine innovations trigger control technology push on for presta and screw on for schrader valves safety lock prevents accidental discharge designed for the rider who demands a higher end co2 tire inflator construction high strength glass reinforced nylon brass valve internals size