On Sale Now! NEW Item - Compatible with Future Fins I received a portion of custom-ordered fins from a surf shop. Although the sizes are slightly different, these are CAPTAIN FIN's TYLER WARREN TWIN es 5.51 model. These fins are designed based on the Tyler Warren Twin 2+1. Designed for maximum speed and smooth rail-to-rail surfing. He also added a trailer fin for comfortable hold with fast & loose twin fins. This covers any twin fin board and also matches boards with a thruster fin setup. The material used is VOLAN cloth, also used by major manufacturers. You can enjoy these fins even with just the twin fins. Recommended fin set! ◎ No accessories included. ◎ There may be slight scratches due to the manufacturing process. This is a great deal for those who don't mind. ◎ The color may be slightly different from the actual product due to the camera's resolution. Please understand. Sizes: Twin Fins: Height: Approximately 142mm Base: Approximately 133mm Box Height: Deep Center Stabilizer: Height: Approximately 92mm Base: Approximately 95mm Box Height: Shallow ◎ There are two types of Future Fin box heights: deep (with an "f" mark on the box) and shallow (with an "x" mark). We cannot accept returns, exchanges, or complaints due to incorrect fin box height. Please check your board before purchasing. Thank you.