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 gap ivory white (with key), double hole ivory white (with key), single gap shiny black (with key), double gap bright black (with key), unmarried hole classic 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 restrict lock, free control window width, to forestall adolescents from mountain climbing out of the window.3. A variety of styles are available, all with keys to ensure the security of children.4. Easy installation:① Prepare child security window lock② Determine the window opening width③ Adjust the width of the tip 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