Genuine Innovations G2628 Ultraflate Plus CO2 Tire Inflator This best-selling CO2 bicycle tire inflator features trigger controlled technology with a trigger lock to prevent accidental activation, and a comfort grip to protect your hand from the cold cartridge Compatible with Presta and Schrader valves: push-on for Presta, screw-on for Schrader, and works with all Genuine Innovations threaded and non-threaded CO2 cartridges (except 45 gram) and Big Air 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 Works great for both cycling and motorsport applications Includes one 16 gram non-threaded CO2 cartridge and a Limited Lifetime Warranty on the inflator