July 30, 2024
Description
The rings holds two 20x3 cm magnets that can be inserted through a slot.
A compatible magnet can be found here: https://www.amazon.ca/TRYMAG-Neodymium-Magnets-Whitboard-Scientific/dp/B09XV87SV6.
Epoxy may be used to close the slot up permanently but is not required.
Supports for printing are not required.
License:
Creative Commons — Attribution — Noncommercial — Share Alike
Chemistry at University of Alberta
