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 hole ivory white (with key), double hole ivory white (with key), single gap bright black (with key), double gap vivid black (with key), single 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 limit lock, free control window width, to forestall youngsters from hiking out of the window.3. A form of styles are available, all with keys to ensure the safety of children.4. Easy installation:① Prepare little one safety window lock② Determine the window opening width③ Adjust the width of the top sheet④ The width of top sheet is smaller than that of card slot⑤ Turn the key to the correct and tighten itPackage Included:1 * window lock1 * Key