Hoppe's No. 9 Synthetic Blend Bore Cleaner is especially designed for the modern firearm and is built on the great tradition started by Frank Hoppe in 1903. This cleaner provides superior removal of carbon, lead, and copper fouling. Its formula is safe on anodized aluminum, titanium, steel, chrome, nickel, plastic, polycarbonate, and rubber. Same great traditional Hoppe's 9 smell, the No. 9 Synthetic Blend Bore Cleaner is biodegradable and non-flammable. Comes in a 5-oz. bottle.