Hoppe's Elite Copper Terminator Works up to 4 times faster than standard copper removers System approach conditions bore for less copper build up Ammonia free and odorless, Safe on bore steel Non-toxic, non-flammable Works up to 4 times faster than standard copper removers System approach conditions bore for less copper build up Ammonia free and odorless; Safe on bore steel Includes one 4 oz. bottle Non-toxic, non-flammable and has no shipping restrictions