This is a notebook holder for pegboard. The model is made with a hole diameter of 6mm and a hole pitch of 25.0mm.
Please adjust according to the hole pitch. (In the case of 1 inch, 25.4÷25=1.016, which is 101.6%.)

When installing, insert from the top and bend while inserting.
Thickness is up to 5mm and 4 books can be stored.