Welcome to our store! Window Opener Lock ------: These 2 window openers to limit the opening distance of a window. They can be removed from one end and the window can be fully opened with keys. Perfect for child safety and anti-theft. High quality product* -----: The door lock is made of high quality aluminum, able to withstand greater pressure, offers more security, health and safety at home and for baby/child Smart design* ----: window locks with special 19cm limitation design provides 11 restriction to 16cm and let fresh air in, and the window can be fully opened after removing the cable at one end using the key Easy to install and many applications* ----- -: This ware window opener comes complete with screws and wrenches and just a screwdriver or drill to install. And this window opener is suitable for most types of windows and small doors, suitable for many types of materials such as PVC, wood, aluminum and metal. Delivery quantity : 2 pieces (with accessories) Product color: White Product size: 45*16mm, length 185mm Note: Manual measurement, please allow 1 - 3cm error!!! 100% Satisfaction - Our customers are our priority . If you find any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately. We do our best to provide you with satisfactory after-sales service.