Streetwise Security Products Police Strength Streetwise 23 Pepper Spray, 3-Ounce, Pepper Foam Safety Lock; Engulfs the face of an attacker; Decreases blowback; Only affects those sprayed Ideal for crowded areas; Independent Laboratory Heat Rating Certified; Derived from over 5 Million SHU; 87% Stronger than Competing Brands Instantly repels an Attacker; Incapacitates for up to 45 minutes; UV Marking Dye 87% Stronger than Competing Brands Derived from over 5 Million SHU** UV Marking Dye