Features: Progressive Continuous Rocker Double-to-Quad concave hull configuration D-I-S-C through midsection into quad V concave out the tail Concaves for lift combined with V for quicker turning AVAILABLE SIZES:134, 138, 142(shown in order below) Features: Winged scalloped tail outline Full shape with release at rail wings Allows rider to shorten the arc of his turn off the wing for slaying Molded Quad plus ONE fin setup Long, warped sides with shallow inside fin set Outside fins for rail hold combines with inside set to control the thrust through the dual concaves Center Keel Center keel keeps water running though concave out the tip without getting too loose Variable edge rails