Micro Cord Spool Center Spacer

This is a very simple spacer that's a tight fit into the center of a Micro Cord spool to provide a narrow center hole.

This goes along with the system of my Paracord Spools (https://www.thingiverse.com/thing:4831426) which I have mounted on a 3/8in threaded rod on my workbench. Without the spacer, the 1- inch center of the Micro Cord spool would cause it to flop around too much.