Super Nano GUN CLEANER the cleaning agent quickly and easily removes carbon, old grease, copper, lead, zinc. It does not contain ammonia, has no smell and toxic fumes, is not flammable, biodegradable. Safe to use indoors especially when toxic fumes are an issue. Meets all industry standards for small arms maintenance. It is harmless on metal, wood, paint, varnish, ceramics, rubber, plastic.