A complete, convenient kit for the rider with speed in mind, the M-Caddy CO2 kit combines a Twin Speed Drive CO2 inflator, two 16g CO2 canisters, a RAP II-6 multi-tool, and Matrix Levers into one of our best-selling M-Caddy organizers that tucks neatly under your bicycle seat. Be prepared with all the essentials needed for a competition or any situation where quick repair and tire inflation are a must.