Quick view FCS FCS II "Carver" Fins - Lightly-Used - Medium - Glass Flex Thrusters Condition: These lightly-used glass flex thruster fins by FCS are in excellent condition! All fin edges are near-perfect, with only the slightest scuffs visible along the fin bodies. Great fins for all types of boards, conditions and surf experience... Now: $44.99 MSRP: $69.99 Was: Add to Cart