Skadis cubicle hook

I couldn't find a suitable hook for my cubicle at the office. So I created this hook that needed to be 2 5/8" thick to go over the cubicle. The little hooks that go into the board are a bit tight and might need some sanding to fit. I'm brand new at modeling, so bare that in mind. I used 3 walls and supports and I used the default 15% infill but maybe 25% infill would have been a better choice. In my case it will be ok since I don't plan on putting much weight on it.