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: single gap ivory white (with key), double gap ivory white (with key), unmarried hole shiny black (with key), double hole vivid black (with key), single gap traditional silver (with key), double gap classic 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 management window width, to prevent youth from mountain climbing out of the window.3. A type of kinds are available, all with keys to guarantee the security of children.4. Easy installation:① Prepare child 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 foremost to the correct and tighten itPackage Included:1 * window lock1 * Key