Planet Bike&';s line of CO2 replacement cartridges make tire repairs quick and easy Features a WEIGHTCartridge weight 16 grams a CARTRIDGE TYPEThreaded head for use with threaded inflation systems a CONSTRUCTION100% recyclable steel cartridges a FAST INFLATIONUse with CO2 compatible mini pumps to get back on the bike quickly Specificationa Our CO2 cartridges work in Planet Bike inflators as well as most competitors&'; inflatorsa Planet Bike cartridges are tested to the highest standards for durability, safety and reliability. They contain pure CO2 with no oils or contaminantsa Note - unable to ship CO2 to Canadaa 100% recyclable steel cartridgesa All threaded cartridges are compatible with Air Kiss, Red Zeppelin, Red Zeppelin 2 & Air Smith CO2a All 16g cartridges are compatible with the Airship 2.0