Increased safety - window limit lock designed for children's safety. They can limit the opening distance of the window, thus effectively preventing children and infants from falling off the window. It also prevents intrusion and maintains circulation.Easy to -- fast installation and convenient . Our window locks can be locked and unlocked. flexibly according to your needs. When the cable is in place, the opening distance of the window is limited. Once the cable is removed from one end with the key, the window can be fully opened. Add extra security to your home.High quality material - the window lock is made of high quality material, which is durable, firm and not easy to rust. It can withstand greater pressure and is not easily damaged. It can be used for a long time.Widely used - security locks are perfect for types of windows and small doors. It is widely used in UPVC, wood, aluminum, metal and other materials. perfect safety lock for family, public and business occasions. Increase enough safety for infants, children, pets, and people living alone.Colour:blackMaterial:Stainless steelSize:220mmPackage Contents:4 x window safety limitersOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.