Window Restrictor Child Safety Lock Window Lock Baby UPVC Cable Restrictor with Keys for Home, Public, and Commercial Applications - White 【Premium Quality】 Window locks for UPVC windows are made of ABS and zinc alloy, 304 stainless steel lock core, galvanized zinc alloy surface is safer and more flexible, anti-corrosion, rust-proof, and durable. 【Unique Design】 Window locks with a special limiting design, the 19cm safety cable provides 11-16cm limitation and allows fresh air in, and the window can be fully opened after the cable is pulled out from one end with the key. 【Easy to Install】 Equipped with self-adhesive glue on the mounting bracket, installation without drilling, simple and convenient to install. Note: You need to wait 24 hours after installation is complete. 【Widely Used】 Used in homes, hospitals, schools, universities, and offices. It is widely used in casement windows, fanlight windows, tilt-and-turn windows, sliding windows, etc.