This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/0roMgqgwMRXThis ring works with the Stubby Mini Ring-a-Thing (link coming soon)The Stubby Mini was made because I wanted interchangeability with the rings I printed, however on my Rep 2, one you put a ring-a-thing on, it STAYS on.This smaller version allows the ring to stay on tight, but still pop off with some force.More designs to come, hope you enjoy this one! It's the middle of winter here in Canada, so this ring helps remind me the warm times are on their way.