Non-perforated Window Screen Limiter Aluminum Alloy Door and Window Fixed Push-pull Child Lock Buckle Anti-theft LockDescription:Name: window lockMaterial: zinc alloySpecifications: unmarried hole ivory white (with key), double gap ivory white (with key), single hole bright black (with key), double hole brilliant black (with key), unmarried hole 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, unfastened management window width, to prevent teenagers from mountain climbing out of the window.3. A kind of kinds are available, all with keys to ensure the security of children.4. Easy installation:① Prepare youngster 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 major to the proper and tighten itPackage Included:1 * window lock1 * Key