The Protector Dog Attack Deterrent Spray from Sabre is an irritating spray that humanely prevents attacks from most dogs. This spray lets you walk, jog, or bike confidently knowing you can protect yourself without inflicting long-term pain or injury to the dog. The 15' range makes this an effective deterrent, and the flip top safety mechanism prevents an accidental discharge. The larger, professional size includes a belt clip for convenient access. Maximum strength allowed by EPA. Four-year shelf life from date of manufacture. Shipped ground only.