Thank you for looking. I am offering new honeycomb fins, perfect for the currently popular retro fish and twin fin boards, at less than half price for 5500 yen. Please take this opportunity to try them out. The size is large, with a base of 14cm and a depth of 15cm, making them ideal for all twin fin boards. Shipping will be via Kuroneko Yamato cash on delivery. Please note that this item is also sold next to Sushiro in Kamakura, so we apologize if it sells out.