[Safety and Privacy]The moveable door lock is solid heavy duty,it is often used with door safety bar,to to supply further security and privacy.Even if you have meet with violent push, they cannot open the door.[Easy to install]It's smooth to install with none tools, ladies can also total the installation quickly .[Univeral]It is a door locker from within for home(bedroom),hotel(motel),college dorm,apartment.etc.[Portable]It's small, mild and straightforward to carry.Colour:blackMaterial:stainless steelSize:8cmPackage Contents:1 * Door LockOnly the above equipment content, different products will not be included.Note: Light taking pictures and varied displays may cause the color of the object in the picture just a little various from the genuine thing. The measurement allowed error is +/- 1-3cm.