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