The gear linkage gives it a completely different fidget feel than a plain spinner—you can feel the resistance as the teeth catch and release. I keep it on my desk during meetings and it's quiet enough that nobody notices.
Aurora A.★★★★★
Spinning this thing is weirdly hypnotic, the way the gears link and drive each other instead of just free-spinning. It's heavier in the hand than I expected, which makes it feel solid rather than cheap. Kept me occupied through a whole boring conference call.
Jacob★★★☆☆
The gear-linkage design is neat to watch and it spins longer than my old cheap spinner, but the thing rattles a bit once it gets going. Fine for fidgeting at my desk, just expected smoother action for the price.