Headphone Wall Holder

I am going to put these on my wall at school to hang all of the headphones I have for students. The front plate will allow me to number the holders to help students know where to put them.

I will hang them with these: https://www.amazon.com/gp/product/B07VYH29T9/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1. They are heavy duty for just some dots.