Hoppe's BoreSnake Venom Gun Cleaner, 4 oz. Bottle Venom bore Cleaner State-of-the-art formula for advanced cleaning of build-up that other cleaners miss Greatly reduces cleaning time 100 percent designed and tested for the toughest situations and environments Formulated to remove more carbon and other fouling in one pass State-of-the-art formula for advanced cleaning of build-up that other cleaners miss Greatly reduces cleaning time Includes one 4 oz. bottle