The Steve Tool is a texture application tool. It is a re-invention of the wheel designed specifically for clay. It doesn't clog easy so you get lots of raw texture! Use the tool to apply texture to thrown or hand built work. The same Steve Tool can be configured into many variant designs by rearranging the disks over the shaft in assorted patterns. Loosen the nuts, adjust the disks into alternate locations & retighten the nuts. It's just a wheel, so let it spin.