Breakthrough Double Ended Brush - 4 Pack - These flexible, double-ended utility brushes give you the versatility you need when cleaning fresh carbon or powder residue off your gun without scratching your firearm's finish. 1 x Double Ended Nylon Brush 1 x Double Ended Brass Wire Brush 1 x Double Ended Stainless Steel Brush 1 x Double Ended Phosphor Bronze Brush