Mace™ 10% Pepper Foam expands when sprayed, covering an assailant's face, making it difficult to see or breathe. The attacker will insinctively try to wipe away the foam, which will grind the pepper into the face, nose, and eyes. This will give you and your family the time to escap. Mace™ 10% Pepper Foam also contains UV Dye that can be used to by the police to identfy the attacker. The ultimate in home or auto protection. High powered model features flip-top safety cap. 113 gram unit sprays 6-10 feet. Contains 10, one second bursts.