Non-perforated Window Screen Limiter Aluminum Alloy Door and Window Fixed Push-pull Child Lock Buckle Anti-theft LockDescription:Name: window lockMaterial: zinc alloySpecifications: single gap ivory white (with key), double hole ivory white (with key), unmarried hole bright black (with key), double hole bright black (with key), unmarried hole traditional silver (with key), double gap basic 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 restrict lock, free management window width, to forestall kids from mountain climbing out of the window.3. A type of kinds are available, all with keys to ensure the security of children.4. Easy installation:① Prepare child safety 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 key to the right and tighten itPackage Included:1 * window lock1 * Key