Check the listing for details. FCS II Accelerator Surfboard 3 Fin Set Performance Core Carbon Medium B/Red New. Condition: New. Listed at 130.00 USD. FCS II Accelerator Surfboard 3 Fin Set. Medium - Performance Core Carbon/AirCore - Black/Red. Authorized FCS Fins Dealer - Brand New In The Factory Package. Description The new PC Carbon Essential Series utilizes a superior blend of carbon tissue and our ultralight AirCore construction to deliver a more user-friendly flex to achieve faster start up acceleration, and a smoother feel through turns. Designed for a balance of speed, flow & response with added control. Ideal for surfers who like to attack the wave and perform aggressive turns. FCS Fins Specifications Total Fins: 3 Fin / Tri SetSize: Medium (65 - 80Kg / 145 - 175 lbs)Material: Performance Core Carbon/AirCoreColor: Black/Red Base: 4.39" / 111mmDepth: 4.58" / 116mmArea: 15.28"² / 9860mm²Sweep: 33.7°Foil: Flat FCS Performance Core Carbon (PCC) Performance Core construction with hand laid carbon fiber designed to deliver controlled flex and enhanced base stiffness.