Starboard Quad - more drive, more traction, the ability to generate more speed on the wave face, turn closer and tighter, ride more vertical with the ability to go where you want, when you want. When going out through the waves, the Quads also help you stay upwind better than single or twin fin boards, thus positioning you for more waves. Can be used as a single fin in marginal conditions allowing for a more free feeling, traditional ride. Bombproof Technora construction. Pristine condition.