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 gap ivory white (with key), single hole vivid black (with key), double gap vivid black (with key), single gap classic silver (with key), double hole classic 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 control window width, to forestall teenagers from climbing out of the window.3. A kind of styles are available, all with keys to ensure the safety of children.4. Easy installation:① Prepare child security window lock② Determine the window opening width③ Adjust the width of the end sheet④ The width of peak sheet is smaller than that of card slot⑤ Turn the key to the correct and tighten itPackage Included:1 * window lock1 * Key