Medium - Your classic wheel shape, versatile all-around wheel for street/park skating.
Smooth - Smooth wheels come with a shiny coating on the riding surface that feels grippy at first, but wears away quickly.
Conical Full Shape - Wider riding surface and cutaway design for unmatched control and lasting speed.
99a - Offers more grip than harder wheels and more slide than softer wheels. Great for slick surfaces when you want more control.