Check the listing for details. FCS II Performer Surfboard Fin Set PC Carbon AirCore Small, Med, Large, NEW. Condition: New. Listed at 130.00 USD. Brand New in Package FIN MATERIAL PERFORMANCE CORE CARBON FIN SIZE SMALL (120 - 155 Lbs)MEDIUM (145 - 175 Lbs) LARGE (165 - 200 Lbs) X-LARGE (Over 190Lbs) FIN SPECS Small Base: 4.25" Depth: 4.43" Area: 14.03"² Sweep: 33.7º Foil: Inside Medium Base: 4.37" Depth: 4.55" Area: 14.81"² Sweep: 33.7º Foil: Inside Large Base: 4.48" Depth: 4.67" Area: 15.58"² Sweep: 33.7º Foil: Inside X- Large Base: 4.59" Depth: 4.78" Area: 16.36"² Sweep: 33.7º Foil: Inside OVERVIEW -Reliable all-round fin for a diverse range of surfers, conditions and board types. -Well proportioned template with Inside Foil Technology (IFT) delivering a balance of drive, pivot and hold. -Designed for surfers wanting a combination of speed and maneuverability with flow between turns. IDEAL CONDITIONS A wide range of conditions from beach breaks to point breaks. BOARD TYPES Recommended for all board types. Please Note: this fin is designed to be used exclusively with the FCS II Fin System, and will not fit in the traditional FCS Dual Plug System.