ASP OC (pepper spray) Defenders were originally designed for police officers and security guards, for plain clothes or off duty use. They quickly became popular with runners, hikers, and others who want a discreet self-defense solution that’s easy to carry and use. Unlike generic, bulky spray cans, Defenders are precision-manufactured instruments, designed to disperse an atomized, cone-shaped “shield” of police grade pepper spray. They incorporate a proprietary housing and valve system, replaceable aerosol inserts, a patented dispensing mechanism, wrap-around safety, and other exclusive features. The unit is O-ring sealed for safety. Operating the Defender requires 2 distinct operations to prevent accidental discharge: release the safety and press the solid brass actuator, and the Defender sends a cloud of potent irritant 3 to 5 feet away, giving you time to get away from trouble. Each insert provides 6 half-second bursts. A Heat (OC) insert is included with your purchase, Test (inert) practice inserts are available separately. Please keep in mind that this product is not available in every state. At ASP, we're dedicated to protecting those who protect. For the past 40 years, we've had a single-minded focus on providing law enforcement officers with the finest tools for the safe performance of their duties, along with industry-leading training in the use of those tools. Every day, law enforcement professionals in over 100 countries trust our products and training with their lives—so they can't afford less than the best.