The fidget spinner is wobbly. I unscrewed it, tightened the mechanism, and reassembled it. It's still wobbly, just slightly less wobbly now.. The main spinning mechanism will spin around roughly 4 full rotations before it stops spinning (roughly 5 seconds when spun with full strength). The spinner, as I got it, had screw ridges showing within the main part in which you hold it. Just not really worth 21 dollars. I have a $3 spinner that will spin more than 90 seconds. 2 stars because it's silent and nice to fiddle with, and smooth, although as a spinner it doesn't function as intended, it makes me think the video is staged/fake in the product demonstration video.
arrived fast and packed very well. they are a bit bigger than I thought.