Headphones hanger

I needed a hanger for my headphones to mount it to the shelves next to my desk. 
This is a rack from bauhaus (link below)

Print it in the orientation shown in the pictures

I can change it if any of you need me to, just provide the measurements of the corner column of the rack.

https://www.bauhaus.si/zeleznina/organizacija-prostora/regali/kovinski-regali/kovinski-regal-futur-250-v-180-x-s-120-x-g-60-cm-nosilnost-250-kg-polico