Ultra compact, race ready tubeless tire repair and CO2 inflation kit features a Nano AirBooster CO2 inflator, TubiCartridge G16, and 16g CO2 cartidge. Mounts to saddle rail with included Duo Fixer which provides dual use with Topeak Duo Fixer system accessories, including Topeak QuickClick saddle bags, CO2 inflators, lights, and fenders. A simple slide and click is all it takes to go on a safe and secure ride.