Pig Head Proline Skateboard Wheels 54mm - OrangeRegular price $43.00
Medium - Your classic wheel shape, versatile all-around wheel for street/park skating.
Treaded - Treaded wheels come with tiny grooves on the riding surface that wear away quickly.
101a - Most common durometer offering a good balance between speed and grip. Meant for skateparks and other smooth surfaces.
They come in a set of four, because it'd be weird if they didn't, right?