Lorette uses metal dies to stamp out the leather panels that make up his medicine balls, of which he offers eight different shapes and sizes, each with three to five different weight options. Back when he was teaching himself how to make them, he grabbed a pattern right out of the encyclopedia. "It's an Archimedian solid, a dodecahedron," he says of his standard ball. "There are simpler ways to do it, but this is the only way to make so many different sizes efficiently. The panel design stays the same."