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), single hole bright black (with key), double gap shiny black (with key), single hole basic silver (with key), double hole traditional silver (with key), security 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 management window width, to stop youth from mountain climbing out of the window.3. A type of styles are available, all with keys to ensure the security of children.4. Easy installation:① Prepare little one security window lock② Determine the window opening width③ Adjust the width of the top sheet④ The width of peak sheet is smaller than that of card slot⑤ Turn the most important to the proper and tighten itPackage Included:1 * window lock1 * Key