
It's amazing! I had my doubts about durability and whether our large dog would fit and so far so good! We raised the door about 4 inches on screen so the dogs didn't have to bend down to get through. The 3-year-old (an 80-pound boxer who took first place in the video) understood immediately. It took a little longer for the 10-month-old girl, but she's got it now. A few treats for both of them to get through it first and then leave them no choice if they want to go outside, but it helped. We bought a heavier screen that works well and I would recommend it. I think he is better able to hold and support the door himself. The dog's door frame touches the inner glass door, but we haven't seen any issues with that yet. A bird flew into our house because the glass door was left open all the time and I'm very glad I won't experience that again!

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