The Futures TMF (The Middle Finger) Trailer Fin is a 5th center fin that can be added to any quad set-up. The fin will increase drive and provide directional control through turns without sacrificing speed, flow, or the freedom of movement typically associated with a quad.
Thermotech: The White Composite (Thermotech) fins have a consistent flex that hold great on the bottom, and then release through turns.
Flat Foil: Flat foiled fins break free sooner and are better at controlling speed. Often surfers prefer them in fast powerful surf where they do not need to create additional speed.
If you are not 100% satisfied with your purchase you may return it for a full refund, or exchange within 30 days of receiving your order.