To wheel throw you have to get around 1 pound of clay and mold it into a ball. You have to make sure everything is set up accordingly then you throw it in the center of the of the bat board. You always have to have the clay and your hnads wet and use certain hand motions to change the shape. One problem I always had was that I would sometimes make everything too wet so the clay would fling off into the border of the machine or the clay would fall apart in my hands. Also, I found it difficult to center the piece and keep it centered.