The Crosman 12g CO2 Powerlets 15-count is a versatile tool that is compatible with any airgun, airsoft, paintball, bike tire inflator or other device that requires a 12g CO2 container. It is crafted using super durable metal materials that resist denting, bending and other damage over time. These Crosman CO2 Powerlets are simple to install on your own and allow you to shoot in rapid succession without having to manually pump between each set of shots