The Williams Key was developed by a firefighter / door carpenter in urban Los Angeles to gain quick access and make entry to commercial and residential doors and gates on the scene of an emergency response call. It causes little to no damage and weighs almost nothing. The Williams Key can be used on both inward and outward swinging doors, interior and exterior, as well as security gates and a handful of other related applications. It serves as a useful and affordable addition to any forcible entry or soft entry kit; or as a stand alone access tool on any piece of fire or police apparatus. ***Not a prying tool***