Umarex High-Grade CO2 Cartridges for Pellet Guns, BB Guns and Airsoft Guns Description Features: CO2 quality is critically important to the health of your air gun; Ensure a lifetime of performance with this clean CO2 from Umarex. Tested and proven clean; Doesn't dirty your air gun valves. Number of rounds per capsule depends on the specific air gun. Available in 12-gram cartridges or 88-gram cartridges. Only available for purchase in certain zip codes Product Details: Brand: Umarex Color: Multi Rounds: 12 Product Dimensions: 2.25"L x 3"W x 3.37"H Item Weight: 0.5 Kilograms Team Name: Umarex Air Gun Power Type: CO2 Brand: ‎Umarex Color: ‎Multi Rounds: ‎12 Product Dimensions: ‎2.25"L x 3"W x 3.37"H Item Weight: ‎0.5 Kilograms Team Name: ‎Umarex Air Gun Power Type: ‎CO2 Item Package Dimensions L x W x H: ‎3.5 x 3.03 x 2.32 inches Package Weight: ‎0.5 Kilograms Item Dimensions LxWxH: ‎2.25 x 3 x 3.37 inches Brand Name: ‎Umarex Country of Origin: ‎United States Model Name: ‎High-Grade CO2 Cartridges for Pellet Guns, BB Guns and Airsoft Guns Material: ‎Blend Suggested Users: ‎unisex-adult Number of Items: ‎12 Manufacturer: ‎Umarex USA Part Number: ‎2252533 Style: ‎12 Gram (Pack of 12) Included Components: ‎Umarex High-Grade CO2 Cartridges for Pellet Guns, BB Guns and Airsoft Guns, 12 Gram (Pack of 12) Size: ‎12 GRAM (PACK OF 12) Date First Available: February 22, 2009