WRS Truth Hardware Secondary Patio Door Lock - White

Spring-loaded and foot-operated, this sturdy device easily engages to provide a more secure door and easily releases to provide a ready means of escape. In fact, this patio door limiter has been tested to withstand a forced entry attempt of 400 lbs. of force. Mounts to bottom rail of sliding door and engages in sill, or into the face of the stationary door.