Works fine for me. For a homeowner without tools, the installation would be unbearable. I cut a hole in the bottom cabinet in my laundry room and attached it to the door so we could hide the tray. Our cat didn't mind going through this as it is a new item. But overall it works quite well. EDIT: This is for a real door, not a closet door as the closet door is too thin for both sides to fit properly.
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