Simple Rat Foraging Wheel

A wheel you mount on the side of your rats' cage to make getting food/snacks more enriching.

I've seen a lot of these around and thought it would be interesting to try and make my own. The most notable difference between other commercial examples is that I tried to put small ledges on the end of each pocket to help keep the food from falling out.

Supports suggested for bottom-most M4 nuts indent.

Parts:
1x 45+mm M4 Screw
2x ~10mm M4 Screws
3x M4 Nuts
Optional: Three washers (to replace the printable ones)

I'm considering creating a version that lets you easily detach the wheel from the wall to make refilling the wheel way easier.