Compact, all-in-one CO2 and tire repair kit. Includes Twin Speed Drive, two threaded CO2 cartridges (16g), and a Lever Kit. Custom neoprene and velcro strap secures all items together. Kit easily fits in most packs, jersey pockets, or can be attached to seat posts. Twin Slip-Fit head presses onto Presta and Schrader valves.