Hold the center of the spinner between your thumb and forefinger and spin it with any free finger. These spinners have a weighted edge and good quality metal bearings.
Size: 6cm
Material: Metal Alloy
This is not a puzzle to solve - it is purely a fidget tool. Read below about the benefits of fidgeting:
https://www.psychologytoday.com/blog/cravings/201609/fidgeting-has-benefits
Metal product looks good while spinning, but workmanship somewhat lacking. Somewhat unbalanced with a bit of a wobble, and had some leftover slag which had to be sanded off. Still works reasonably well.