This Nine Gear Metal Kinetic Fidget Spinner Spins for a very long time (sometimes over a minute) and works well. Got one for my wife. Delighted to see that this is the design where the gears all work with the center gear AND bearing. There are some other designs that the center gear spins independently from the bearing. So it spins faster because of less drag, but is less entertaining. This design does decrease the drag by using the R188's and has all R188 bearings on all the gears. All of the gears spin. Great stress reliever.