The Penkid Cable Window Restrictor is suitable for all kinds of doors & windows including uPVC, aluminium, wooden and metal profiles. This cable window restrictor restricts the opening of a window, giving between 10 and 15cm worth of opening, depending on where the restrictor is installed on the window. This Penkid cable restrictor is particularly useful for keeping windows near young children safe, preventing accidents where the child pushes the window open and falls out. This cable restrictor is key locking, which allows the window to be opened fully when the restrictor is unlocked, while also preventing the window restrictor from being unlocked by accident. The Penkid is supplied in a pack with the restrictor, a cover plate, screws and fixing instructions, to make it easy to install. In addition, the screws are self-drilling, meaning they can be used directly on the window profile. Suitable for use on aluminium, timber & uPVC windows and timber, uPVC & composite doors. The PVC cable cover has UV protection & an anti-bacterial feature Supplied with a visible cable length of 175mm - overall length 200mm - provides a 10 to 15cm restriction. Locking - provides extra child safety and home security. 1 Key included in pack, extra keys can be purchased HERE Pack contains - restrictor, cover plates, screws and fitting instructions. Endures up to 550kg of force. CE & BS-EN Tested for added assurance. Perfect for use in homes, hotels, schools, nurseries etc.