Third Finger from the Left Spinner

Well that's a bit rude isn't it?

Comes in three flavors: one with one bearing in the middle and two with four. One of the four bearing designs has the outer three holes opened while the other has them closed.

Uses 22mm diameter bearings. You may need to do some sanding to get the bearings to fit. Glue the bearings in place if you're using the open design or they may come flying out.