Once the repair is complete, it takes only a few of the 16-gram CO? canisters to fully re-inflate the tire Kit includes: 6 - Rubber patches Tube of rubber cement Thumb buffer to repair and secure patch to the tire 4 - CO? canisters to fully re-inflate the tire Waterless hand cleaner and paper towelette for quick hand cleaning CO? cartridges cannot be transported on an aircraft.. SCOOTER TIRE REPAIR KIT