Easy to install

I had no problem installing this cat door. It fit nicely in the window opening. With my windows it did not require any tools. The extendable sides worked great. The knobs to hold the sides in place are a nice touch. Much easier than a screw. I love the small windows on it so you dont lose all the view. The only problem i have is as many others have. The cat door it self is so light that the seal material around the door will not let it shut fully every time. I trimmed the material a bit on both sides of the door and added a small weight near the magnet and it works perfect now.

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