4PCS Safety Window Door Restrictor Safety Lock with Heavy Duty Cable and Key Lock for Baby, Child, and Cat

4-Piece Child Safety Window Restrictor Set for Baby Doors and Doors with Lock and Key Can be used in hospitals, hotels, homes, and schools Length: 18cm. Suitable for: PVC, wood, aluminum, and metal Fits most windows and small doors It also offers an added security advantage: limiting how many times the window can be opened prevents burglars from using it as a point of entry.