The unique design & material of the Exalt Tank Grip allows the one size to be used on any carbon tank. Exalt tank grips feature a high quality rubber for no tearing during rigorous play. The no stain material will not stain during any type of paintballs used including high quality tournament paintballs. These tank grips fit a different variety size of paintball HPA tanks including 50 ci, 68 ci, 77 ci, 80 ci, and 90 ci. These create a more minimalistic design than full tank covers while still creating superior grip when your paintball gun setup is holstered against the shoulder. The exalt tank grip is a low weight design at 1.5 ounces to not add excess weight to your compressed air tank!