Streetwise Security Products SW3HDBPK23 1/2-Ounce Streetwise 23 Pepper Spray with Dooney and Bourke Holster Safety Lock; Key ring Attachment; Sprays from inside the case 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 Independent Laboratory Heat Rating Certified