Guard Dog His & Hers 1/2 oz. Pepper Spray Blue & Pink Soft Cases with Key Ring Spray made of a 2 million SHU (Scoville Heat Units) formula with 18% OC (Oleoresin Capsicum) Comes with two soft durable cases, blue and pink, with snap closures and built-in key rings 1/2 oz. 3.5" tall by 1" diameter canisters contain 7 to 9 one-second bursts that fire up to 12 feet Quick release one hand operation with a locking safety actuator to prevent accidental discharge Lab tested with 36 month shelf life; Protected 4 Life, lifetime replacement (if used during attack)