DOOR AND WINDOW SAFETY 2pcs. A set of two robust metal security devices for windows and doors - effectively locks the door handle to prevent the door or window from being opened.The set includes all the parts needed for installation.All you need is a screwdriver or screwdriver.The security device can be screwed on and is very durable and can be securely fastened. If you want to unlock the lock, all you have to do is turn it in the same way you turn the handle of the window.A lock mounted on the door effectively limits the possibility of a child entering the room with dangerous tools.In turn, fixing the security device to the window prevents the child from opening the window.A handy tool that will come in handy in any home with young children.It will increase your and your child's sense of security.Set contents.