Barracuda Intruder Defense System Model DSI for Inward Swinging Doors Unavailable Each set of 4 same sized Emergency Evacuation Bags:32 Unit Epi Evacuation Bag Each set of 4 same sized manikins (with CPR monitors) come in their own carrying case with instruction sheet and 50 appropriately sized Face Shield Lung Bags to start you out Place hands under UV light to view germs Pushing outward on the handles engages the plates to the exterior door jamb and the device is securely locked in place by simply inserting a pin (Model DSI Fits 5 3 4" Jam) The user places the device on the floor and slides the metal plates under the door