Mounts under the Ninja Water Bottle Cart with the interchangeable Cage Mount or used separately with the Frame Mount. the CO2 FuelPack contains everything you need when repairing damaged inner tubes. INFLATOR HEAD Presta / Schrader valves, Push to inflate INFLATOR MATERIAL CNC aluminum MOUNT Mount to Ninja Master+ series Cages with included Cage Mount. Install on frame, stem, seatpost, or water bottle boss with included Frame Mount and zip ties. ADDED FEATURES 2 threaded 16g CO2 cartridges*, Compartment for CO2 inflator & cartridge WEIGHT 129 g / 4.55 oz