The Barracuda DSO-PB is for use on Out Swinging 36" Doors with Exit Devices. It is constructed of heavy duty steel with a durable powder coated finish. The bar goes across the door frame and grabs the mounting cleat with an adjustable clamp. To secure the door, simply turn the handle until it is secured. They currently offer two models, one for jambs up to 5-3/4" and one for jambs greater than 5-3/4". This device ships with all of the hardware and a wall mounting rack for storage.