[Quality Material]:Sliding Window lock is made of quality iron and rubber material,precision casting and durable,longer service life [Function]:Safe Window lock for children,keep curious toddlers away from for windows,doors,etc.Avoid accidental opening of children [Simple Installation in Seconds]:Adjustable Window Stopper is easy to install,without any additional tools [Compact Size Design]:Window locks length:2.36 inch,width:1.57 inch,height:0.87 inch.Packing:4 Pieces [Wide Application]:Window Stop Suitable for families,hotels,schools,and girl travelers.Protect the kids,elders,and even pets in your family