Dead stock is running out. It may be out of stock as it is also sold elsewhere. The material is made of reinforced plastic. New, Unused Rare star fin A fin invented by Shane Ho ran. This is a rare fin, so don't miss out. The side with the pin is the front, so be careful not to make a mistake when using it. Since it is an Australian standard, there is a possibility that it may not fit unless the base is slightly shaved.