The Genuine Innovations Air Chuck Elite CO2 Pump is a compact and highly usefultool for fixing flat tires. It is designed to efficiently get the job done without requiring extra gear. With the ability to connect to both Presta and Schrader valves, this pump allows you to quickly screw in a CO2 cannister and get back to riding. Made from durable and lightweight alloy, it is compatible with a range of CO2 canister sizes. While its small size is advantageous, there is a risk of misplacing it in your jersey pocket. The pump comes with 16gram and 20gram CO2 cartridges.