Description: 【Children Protection】: The child safety window chain lock can provide a reliable environment for kids, protecting children from falling out of the window. 【Durable Material】: Premium plastic window lock and stainless steel chain, high hardness, wear resistant, sturdy and durable to use. 【Adjustable and Reliable】: The length of the window restrictor chain is adjustable according to your needs. Double locking design, press the side button and the middle slide switch to unlock. 【Wide Applications】: The security chain lock is suitable for the home, bedroom, living room, kitchen, toilet, window, door, fridge, cabinet, drawer, etc. 【Easy Installation】: The child safety lock is easy to install, no drill or screws are required, will not damage furniture. Strong adhesive backing, firm and stable. Specification: Chain length: 20cm/7.87inch Lock body: 7.5*3.2cm/2.95*1.26inch Material: ABS plastic and stainless steel Package Includes: 1pcs Window Lock(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.