The CO2 Tire Repair Kit is the ideal solution for all your flat tire needs This repair kit provides everything you need to repair and inflate multiple flat tires It features a built-in trigger lock which eliminates accidental activation This repair kit offer push-on for Presta and screw-on for Schrader Easy to use, just drop the CO2 cartridge into the cup and simple screw on the head Then you can attach the valve, unlock safety latch, attach to valve stem and pull trigger to release gas Moreover, the repair kit includes rubber plug, T-bar tire repair tool and CO2 release valve