This sliding door is designs to provide additional home security from the patios door or sliding window, at night. This sliding door can be installed in the floor, top or even in middle of the door, included a collector that can be fit into your drilled hole making it look more aesthetically. It is suitable for folding door, accordions door, closet door, revolving door, Window and interior and exterior sliding door. Using 12mm bolt rod, it is flexible and smooth to use, and the antitheft tongue is firmly locked with a . Package includes: 1pc Body 2PCS Screw with Decorative Cover 1pc Cover 2PCS