Carbon Dioxide cartridges allow for shooting in rapid succession without the need to manually pump the SHRED-ER between shots. Pioneered by Crosman in the 1930s, the Powerlet CO2 enables you to shred the sh!t out of giant roaches, murder hornets, scorpions and the like. Each cartridge, if inserted correctly, provides 60 high powered shots. 5-Count package 12-gram, small neck CO2 cartridges Snug fit and solid seal for reliable performance Made in USA with globally sourced components Do not expose to heat or store above 120° F (Don't take 'em to death valley) Keep away from children & idiots who think they are fit for human consumption