Foot Massager

A simple, one-piece, no-support-needed foot massager. Finely grooved rolling edges to work on carpet or hard flooring. There were many foot massagers online already, but the ones with aggressive teeth required supports. Many were just too complicated, with many printed parts to assemble, and some needing additional hardware. The simple ones didn't have very aggressive teeth or teeth that would need supports. I knew what I wanted, so I just made it in Fusion 360. It prints on its end without supports. No assembly is required. Print it. Use it. 
It's about 4 inches (100mm) in diameter, and the toothed part is about 4 inches (100mm) wide.