Future Fin Compatible Side Fins I received a portion of custom-ordered fins from a surf shop. Although the size is slightly different, these fins are designed with the CAPTAIN FIN Chippa Wilson SLIDEY BOIZ 2.44 as a benchmark. Developed as side fins for bonzer-type surfboards, they are small side bite fins that can be adapted to 2+1 setups on mid-lengths and longboards, regardless of board shape. The material is VOLAN-type fiberglass, which is characterized by its high rigidity and responsiveness. Despite their small size, they enhance drive and hold during 2+1 setups, supporting stable riding. In addition, even those who are not good at finless riding can enjoy moderate drive and controlled sliding. Applicable for: * 2+1 side fins for bonzer types * 2+1 setups for mid-lengths and longboards * Side bites for twin fins and other setups. These fins can be enjoyed according to your mood and the waves of the day. You won't regret having them. ◎ 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 resolution of the camera. Please understand. Size: Twin Fin Flat Foil Height: Approximately 65mm Base: Approximately 130mm Box Height: Shallow No accessories included. ◎ 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.