It's a square. It's a sprial. It's both at once.
Because of Squyral's square shape, it is very thin between fingers and it has the effect of a Euro Shank to keep the top of the ring upright. The stainless balls are trapped in tension as the ring loops around twice. A fun ring.
The ring shown is a size 6.5 and is around 2.5mm wide at the bottom and has a polished finish. There's no room for engraving in this ring.