Roberts "Mutant"It's Alive!!! The Mutant is a small wave groveler that gives you tons of down the line speed with great control for high speed turns. It is a very similar but more high performance version of the Mush Machine. This board is sized 6 to 9 inches shorter, 1. 5 inches wider and 1 8 inches thinner than your high performance short board. Makes a small session fun while allowing the rider to still perform Helps replace a longboard or a bulky fish style board