The Genuine Innovations Ultraflate Plus Tire Inflator works with all Genuine Innovations threaded and non-threaded CO2 cartridges (except 45 gram) and Big Air. This best-selling CO2 bicycle tire inflator features a trigger lock that prevents accidental activation, and a comfort grip to protect your hands from the cold CO2 cartridge. Compatible with Presta and Schrader valves: push-on for Presta, screw-on for Schrader. This is an easy-to-use inflator: simply drop the CO2 cartridge into the cup, screw on the head, attach to valve, unlock the safety latch, attach to the valve stem, and pull the trigger to release air. So quick and easy, you’ll be back to riding your bike in no time. Works great for motor sport applications. Includes trigger controlled technology; one 16 gram non-threaded CO2 cartridge.