Finger Spinner

Finger Spinner
A finger spinner is a small toy designed to spin easily, typically featuring a central ball bearing that allows it to rotate smoothly. It consists of a central hub held by the user's fingers, surrounded by two or more weighted arms that create momentum when spun.
and are popular for their ability to help with focus and stress relief. They operate on the principles of angular momentum and low-friction motion, allowing for extended spinning without the need for batteries or screens.