Door Window Lock Restrictor with Key Window Cable Limit Lock Adjustable Portable Alloy Security for Bedroom and OfficeFeatures:Without further installation tools, it may be smoothly utilized in most environments; air stream can be improved by way of protecting home windows partly open and closed, whereas preventing youth from mountain climbing and falling out of windows.Specifications:Material: Aluminum alloyScope of application: screensSize: (A)30*25*25mm/1.18*0.98*0.98",(B)60*25*25mm/2.36*0.98*0.98"Notes:Due to the various computer screen and lightweight effect, the particular coloration of the article is probably slightly diversified from the color showed at the pictures. Thank you!Please allow 1-3mm measuring deviation because of handbook measurement. 1 X Door Window Lock Restrictor Set