Concept 2 RowERG Rowing Machine Ring Holder

I had a bad habit of putting my ring to one side while I rowed and then forgetting to put it back on after. This print slides neatly on the the standard device holder for the RowERG to make sure it's never left behind!

I recommend printing it out of TPU so that there is zero chance of damage to the device holder or your ring.

The current design is two pieces that I simply glue together with super glue.