Balanced Performance: Ideal blend of speed, flow, and response for all surfing styles and conditions Inside Foil Technology (IFT): Enhances maneuverability and control through smoother rail transitions Performance Core Construction: Lightweight yet durable composite for high-performance surfing Tool-Free FCS II System: No screws or tools required – snap in/out quickly with FCS II fin boxes Versatile Thruster Set: Designed for surfers who want one reliable fin set for a wide range of conditions Designed for surfers who want a balance of speed, flow, and response, the FCS II Performer Performance Core Tri Fin Set offers exceptional versatility across a wide range of conditions and board types. Featuring Inside Foil Technology (IFT), this all-round fin promotes smooth rail-to-rail transitions and optimal drive. Built with Performance Core construction, these fins are lightweight yet stiff enough for high-performance maneuvers. Tool-less FCS II system allows quick and easy fin installation or removal. Ideal for surfers seeking a dependable thruster set to handle anything from beach breaks to point breaks.