#80146 Muzzle EPA approved Muzzle provides safe, effective and humane protection against canine attack. Ideal protection for walkers, joggers, cyclists or delivery people. Velcro-like attachment can secure unit to bike or car. Features flip-top safety cap, finger-grip dispenser, belt clip and keychain. 17 gram unit sprays up to 10 feet. Contains 10 one second bursts.