Perfect outer fins for your surf-style board, the O'Brien 2 Face 3.6 Wakesurf Fins are made with carbon fiber and hex cell resin infused construction. This provides a stiffer fin with instantaneous response.• Carbon Fiber/Hex Cell Resin Infused Construction• Stiffer fin with instantaneous response• 80/20 foil for smooth rail-to-rail transitions• Plenty of hold and drive on the wave• Compatible with FCS fin boxes• Sold as a pair | O'Brien 2 Face 3.6 Wakesurf Fin Kit | The House