Usage Tips:Features: The window child lock restrictor is designed to restrict the opening distance of windows and doors to help reduce the risk of injury from falls. Meantime allows fresh air flow. Suitable for most wood PVC and aluminum hinged sash and sliding windows. An ideal choice to ensure the safety of your children or pets. This window restrictor come with strong adhesives no drilling or screwing into your window frame just simply peel off the adhesive backing and attach to the window. Also comes with spare adhesive tapes so we may reuse once the windows in to save drilling near the windows. Simple and Practical: Designed with a 360 swivel steel cable so that no matter what side or angle you install the plates the cable will swivel and hang down out of the way when unlocked. Simply turn the key to open the lock no awkwardly fumbling with combination locks misplacing padlocks or going hungry because you forgot your number combo. Strong & Sturdy Design: The window restrictor is made of strong metal and high tensile steel cable more sturdy and durable. Wide Application: These childproof window locks are also suitable for many cabinets drawers and doors. Also be used to hold down toilet seats and seal off the doors of microwaves and other appliances. This ensures your child to explore in a safe home environment. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Material:ABS+Stainless Steel Size:20*3.8*3.8cm includes: 1*Security Lock