Invented by our good friend Bob "The Greek" Bolen in Huntington Beach California, these fins are an awesome addition to any Mini Mal, Longboard or SUP board with a standard fin box set up. They are made from GE Lexan Polycarbonate Resin which is a super strong material used on NASA Helmets and many other applications.
 
Due to their unique design, they help you achieve unbelievable nose rides, smoother turns, more stability and increased down the line speed. Turbo Tunnels can be used as a single fin set up or as a thruster set up in combination with the 6cm Turbo Thruster side fins (awesome on a Mini Mal). Proven in a number of high profile Longboard competitions the world over, we love them here at STC and we are pretty sure that you will too.