horizontal spool holder for wooden board

Spool holder horizontal for wooden board, useful to optimize the space used by the many open spools present in the laboratory.
Developed to withstand the weight of a new spool 1kg.
Suitable for generic spool RS 200 GH and Zortrax.
Important: wooden board thickness from 19 to 20.70mm.
A useful hole on the top allows you to insert a screw to secure the stand (15x3mm)