Due to popular demand, I had the workshop make these for me. Brand new, unused. Rare stabilizer (TWINZER type fin) compatible with Future Fins. The Twinzer was invented in the late 1980s and improved in the early 1990s. This setup was first incorporated into surfboards by Will Jobson, who was shaping in Southern California in the late 80s. Incorporating aerodynamic ideas: Twinzer fins (canards) guide the water flow to the larger rear fins. This creates greater propulsion on the line while keeping the board on the rail. I hope you will use it in combination with a single stabilizer or twin fins (quad fins). You won't lose out by having another set; it will be useful in various situations. Fine condition settings are also OK. It will bring out the performance of your board and your potential. ◎No-brand product ◎Although it is brand new and unused, there may be slight scratches or color unevenness due to the manufacturing process. This is a great deal for those who don't mind. ◎The material is fiberglass, which gives it a luxurious feel. The color is also good and cool! ◎The actual color may be slightly different due to the resolution of the camera. Please understand. I am also listing other items. ◎Size Height: Approximately 83mm Base: Approximately 71mm The height of the box is shallow. ◎There are two types of Future Fin box heights: a deep one with an "f" mark on the box and a shallow one with an "x" mark. We cannot accept returns, exchanges, or claims due to incorrect fin box height. Please check your board before purchasing. Thank you for your understanding. If the fins are difficult to attach or detach, please adjust them by sanding, etc. The foil uses a standard flat foil. The flat foil provides stable control in all conditions. It has a very high responsiveness due to its stable operability, even when the board is about to stall in the barrel. #futures #FCS #MR #AMTwin #SUP #Twinfin #Wax #Boardcase #SUP #Racefin #Shortboard #Midlength #Twinfin #Centerstabilizer #Fin