The cannondale 6 function mini tool with co2 inflator a great compact minitool for on the go repairs along with co2 cartridge cannondale 6 function mini tool with co2 inflator features 3 4 5 6mm hex t25 flat driver bits twist puncture operation allows precise discharge of threaded co2 cartridges compatible with presta and schrader valves includes 1 cannondale airspeed premium co2 16g refill cartridge and 1 neoprene insulating sleeve