Ok, after the 225.00 spent on this ALL PLASTIC door, and the 300.00 spent carving the glass out of our french door in the back to install it, our dog won't even use it! It makes such a loud noise when it slams, it freaks him out. After trying several days (which has now turned into weeks) to train him to use it, he just pushes his paw against the door, lets it slam, which scares him, and then starts crying. Believe me, after the cost of this door, and the price to install it I feel like crying along with him. To top it off, the "infra red" key collar is a piece of $#@&! I've gone through three of these things at 25.00 a pop, and when the last one broke, I decided to forget it. (The keys honestly look and feel like you could by them 2 for 1 at the dollar store.) I have finally decided that I'm going to have to get a different door. I just hope this one hasn't scared our dog so much, he'll never use one again! A piece of advice to you, don't buy this door. Buy something else.