The FCS II Carver Quad Eco Rear/Central fins allow you to set up your board in quad.
You can use them with your usual front fins. Only rear fins are included in this kit.
Small size available for surfers from 55 to 70 kg, and Medium size for surfers from 65 to 80 kg.
Construction:
Neo Glass Eco: Fiberglass and light resin based construction that allows high performance. The Neo glass fins are both rigid and responsive.