Patio Door Security Lock, Button Type French Door Security Lock, 30mm Universal Tube, Aluminum Alloy Patio Door Lock Strong and Sturdy, Easy to Install, Improve Home Security (White)

I have a cat flap in one of my patio doors and although you'd have to 4ft arms to be able to reach through it, I've always been slightly concerned that it could happen.This device is essentially a metal tube with plastic lining and hinge all the way down one side, which opens by way of a simple sliding catch, and hooks over your internal door handles to prevent them from being moved.It's simple to operate, and when fitted looks fairly unobtrusive. I've tested it from the outside when the doors are unlocked, and I am unable to move the handles.This device has now given me peace of mind that no one is going to easy be able to manipulate the handles on my patio doors.

Been after one of these for years, have been using a simple bike lock, this is so much better, very easy to use, and incredibly sturdy, works simply by fitting over both door handles, an duo longer allowing them to be moved.Fits my French doors perfectly no hassle.Good value, and do what they are supposed to.