Alloy inflator head has an oversized "Tap Handle" control valve to regulate CO2 release. Easy to operate even with gloves on \n - Fits both Presta and Schrader valves, threading on for extra security \n - Includes one 38g cartridge and foam insulator sleeve \n - 38g cartridges capable of filling larger volume tires; 26x4.8 tire to 6-7psi or a 29x3.0 tire to 20-22psi \n - Sold individually or with CO2 cartridge \n - Additional CO2 cartridges sold separately. See part DW5009