Adjustable Window Lock Stopper Safety Locks for Kids and Pets Anti-theft Door Lock Non Punch Sliding Window Lock HardwareDescription:Name: window lockMaterial: zinc alloySpecifications: unmarried gap ivory white (with key), double hole ivory white (with key), unmarried hole shiny black (with key), double gap brilliant black (with key), unmarried hole traditional silver (with key), double gap basic silver (with key), safety window lock (with key)Scope of application: sliding windowSpecifications:1. Product features: thickened material, thickened panel, thickened chain, controllable width.2. Product use: window limit lock, free control window width, to stop teens from mountaineering out of the window.3. A sort of types are available, all with keys to ensure the safety of children.4. Easy installation:① Prepare baby safety window lock② Determine the window opening width③ Adjust the width of the end sheet④ The width of top sheet is smaller than that of card slot⑤ Turn the main to the proper and tighten itPackage Included:1 * window lock1 * Key