Door Window Lock Restrictor with Key Window Cable Limit Lock Adjustable Portable Alloy Security for Bedroom and Office Features: Without extra set up tools, it can be smoothly utilized in maximum environments; air move would be progressed by keeping windows in part open and closed, whereas preventing teenagers from climbing and falling out of windows. Specifications: Material: Aluminum alloy Scope of application: displays Size: (A)30*25*25mm/1.18*0.98*0.98",(B)60*25*25mm/2.36*0.98*0.98" Notes: Due to different monitor and light effect, the actual color of the thing is probably slightly different from the colour showed on the pictures. Thank you! Please enable 1-3mm measuring deviation because of guide measurement. 1 X Door Window Lock Restrictor Set