156MGS Fox Labs Pepper Spray Mean Green 1.5 oz Stream is a safety flip-top stream unit firing up to 20 feet with a thick green dye that marks offenders. Fox Labs Pepper Spray has been widely known for its strong pepper formula containing 3 Million SHU (Scoville Heat Units), which is bound to immobilize your attacker. Each canister fires a heavy stream pattern, with a range of 17 to 20 feet, which is much further than a regular cone pattern pepper spray. The Fox Labs Mean Green Pepper Spray has also included a green, water-based dye that marks your assailant, enabling you to easily identify him/her following the attack. Each canister contains 18 half-second bursts and is spring-loaded with a flip-top cap for additional safety. This product has a three-year shelf life and measures 4″ T x 1 1/4″ D.