100% double knapped cotton patches are saturated with T-17 Bore Cleaner. Specially formulated to clean and neutralize the corrosive effects of black powder and black powder substitute powders. These patches are convenient to use and make loading your muzzleloader easier. Jar of 100, 2-1/2" (works well with .45 & .50 Cal.). For more Muzzle Loading Accessories Click Here!