A quick video presentatio from Action Sport Games (ASG) on their Ultrair CO2 Care Kit... "The ActionSportGames CO2 Care Kit is a new and convenient way for airsoft and airgun shooters to maintain their guns. The Care Kit consists of ten 12 gram CO2 cartridges: nine dry regular cartridges, and one lubrication cartridge that contains a specially formulated blend of CO2 and lubricants.  Just use the full Care Kit like regular CO2 cartridges to maintain and lubricate the seals, gaskets, and valves on their airsoft gun or airgun to prevent leaks. The process of firing the airsoft gun or airgun will distribute the lubricants throughout the inner workings, eliminating the need to manually maintain airsoft guns or airguns using bottles of lubricants."