Adventages of this design:

• durable,
• parametric,
• minimalistic,
• tested in real conditions.

To attach the mount to the wall/shelf you will need two self-tapping screws with similar dimensions to the one in the picture below. After that insert the hook into the mount. If it doesn't fit, use the mount with increased tolerance. If you don't want to use the hook, print the comb without hole. No support needed.