4pcs Kids Window Door Cable Restrictor Lock Child Baby Safety Security Wire Catch These restrictors are very easy to install and comes with four steel screws for fitting. The restrictor consists of a zinc alloy body, a nickel plated pin and a steel wire rope which is 20cm long. Can be used in hospitals, hotels, homes and schools Suitable for every type of opening window. A key is also provided so that the restrictor can be locked as required and also so the window can be fully opened when necessary. Color: White Material: zinc alloy Size: about 19*4*6.5*4cm Package Contents: 4 * child window locks Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.