The center fin is size L, and the side fins are size S. I was using the center fin, which is soft and large. The fin tips are also in very good condition with no damage. To deliver the item in the shortest possible time, we may change the shipping method from Rakuraku Mercari Bin to Yuyu Mercari Bin, or from Yuyu Mercari Bin to Rakuraku Mercari Bin, depending on the time of purchase. Please understand. If you have any issues with either Yamato Transport or Japan Post, please let us know before purchasing, and we will do our best to accommodate you.