Pro Teck Perform FFS Stiff Flex Black 4 Fin Quad Set Includes 4.5" Front Fins / 4" Trailer Fins One (1) Pro Teck Performance Stiff Flex Black Futures Fin System Includes 4.5" Front Fins / 4" Trailer Fins from Pro Teck Surfboards Made from high-quality materials and built to last Great for everyone from beginner to pro Surf at higher speeds without the drag of a middle fin