Hook for Circular Rod / Clothes Rack

This hook is designed to place snugly on the bar of the clothes rack I have in the cupboards at home (circumference=60mm).

I used to use another hook downloaded from somewhere here, but it was pretty thin and snapped easily when bearing even a small amount of weight.
This hook is designed to be more durable, and should be able to carry a little weight reliably depending on the print settings you use.

I've printed a few with 35% infill.

It's designed in FreeCad (source file included!) and has adjustable parameters in the spreadsheet, so if you would like to modify the hook to fit a different size, or adjust the thickness, then go nuts.