“I am not sure how the flap itself will hold up over years of use - it is not a perfect seal because it is flexible. But it is better than our old one. The small size just fits our Jack Russell - she has to shimmy a little but that's fine, and nothing else is going to use it. The option to shut it completely off at night works for us, and no more hassle than a lock fitted to the flap itself which we used to have. Pretty good.”
