General information:

I drew the model in Fusion360. This model only works for the size B quick change steel holder. I chose PETG as the material, but I think PLA would also be strong enough. It is slightly tilted for easy access.

My print settings:

• 3 perimeters
• 50% infill
• 5mm brim
• no supports

How to install:

• Use your preferred wall mounting method
• you also need at least 2 screws

Image source

I found the data sheet on Amazon