Using thickened 12mm bolt rod, it is flexible and smooth to use, and the antitheft tongue is firmly locked with a 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 This sliding door is designs to provide additional home security from the patios door or sliding window, at night Make of Aluminum alloys and Iron, thickened, resistance, strong durability, not easily deformed, Manufacturer: Kaeltsyn