Was honestly expecting something a bit gimmicky, but the titanium version at 91g has this perfect heft that makes it spin forever without any wobble. The stone-washed finish hides fingerprints nicely and the 20mm height makes it easy to flick with one hand.
Finally a fidget that actually feels like a precision tool. The 128g stainless steel version has a satisfying heft and the 2-inch diameter fits my palm perfectly. Spins for ages with just a flick, and the stone texture finish gives it a grip that keeps it from flying out of my hand.