Big Jammer Door Brace Bar by Mace Door Security

Great, simple door stopper to improve your personal safety and enhance door security. The Big Jammer will re-inforce your solid door to prevent break-ins.
Mace is a name you know and can trust to provide solid security products. The Big Jammer Door Brace Bar is made of strong 20 gauge steel. This adjustable door brace is ideal for home, dorm, apartment or office use. Installs easily under the door knob and provides added security for home or business. Includes Security Bracing Pin for added strength. Adjusts to fit most hinged doors. End caps can be removed to allow for use on sliding glass doors. Clean, baked enamel finish makes it attractive for indoor use. For use on doors opening in only. Will work on carpeting, tile, wood or concrete.
I got one for my Mom, she loves it. We have customers who are using this door bar in their apartments, or half-million dollar homes, no difference.