Key features

• •FINS for MULTIPLE USE: These thruster fins suitable for surfboard, shortboard, funboard or longboard that uses Futures style fins. Plus the accompanying tools, you can install it on any surfboard you like.
• •A quad setup is often a good choice in most types of surf – from overhead and fast to tiny and slow. Quads are fast with great hold, but still feel extremely responsive and loose. They are great for getting past fast sections and wide, connecting turns.
• •Quad setups excel with big rail-to-rail carves on an open face, but are also great for speeding through slow sections. The extra fins on each rail allow for powerful hold through and drive out of turns. However, they can have a tendency to slide out when you dig into a turn too hard – depending on what you're trying to do, that could be a good thing or a bad thing.
• •The Quad set includes 2 FCS fins (left & right large fins), 2 FCS keel fins (left & right smaller fins), 1 FCS fin key. Specifications are - Medium - Large; WEIGHT RANGE: 120 -195 lbs / 60-88 kg / BASE: 4.35 inch / 11.0 cm; HEIGHT: 4.56 inch / 11.6 cm; AREA: 15.12 sq inch / 97.5 sq cm; SWEEP: 34.1 degrees
• •The Foiling of these surfboard fins are designed to produce increased laminar flow (Hold), and dramatically decrease turbulent flow (Drag). The Dorsal Glass Series Foils work on a wider range or angle of attack than that of the competitors which means you'll hold more speed through turns. GF Series Foiling is designed by hydrodynamic scaling to insure the most speed possible to produce. Dorsal's Glass Fiber fins are the most advanced and exciting fins on the market.