Must-sell item! Limited stock remaining in stores. Super popular! Brand new, authentic product. *This is the FCS2 BOX type. ↓ Japan's number one fin fanatic (tested on about 230 boards) NEST store manager's trivia... The super popular and hard-to-get yas thruster fins honeycomb version is now available! Lighter and with increased fin flex, it performs exceptionally well! *The fin box positions differ between twin stabi and thruster (tri) setups. Therefore, if you attach twin stabi fins to a board with a thruster fin box position, it might feel loose and not provide good drive. If your board has a thruster fin box position but you want to ride it like a twin stabi, try these fins! They will give you a response very close to a twin stabi setup! (^^) I think these are very well-balanced fins! *The yas thruster fins have three cores (image 4), and the GUCCI store manager uses glass for larger waves, honeycomb for standard wave sizes, and carbon for small waves. Although all three have the same template, the riding feel is completely different, allowing you to understand the depth of fins. ↓ yas thruster fin explanation video *Copy and paste the URL below into Yahoo! or Google to search. https://youtu.be/24441206aIw?si=s9H5OLqFQuafgsmJ *As this is also sold in stores, if it sells there, this listing will also end. Thank you for your understanding. m(_ _)m *As this is a product sold by an authorized dealer, B-grade items mixed in with new items have been checked and removed. There are no B-grade items that are advertised as new. Of course, there are no fakes, so please buy with confidence. (^^) *Please understand that there may be some color differences between the photos and the actual product. *You can purchase it directly. *The fins listed as new and unused are definitely new and unused, but there may be some minor scratches or print misalignments due to the manufacturing process, so please refrain from purchasing if you are sensitive to such details. *We generally do not accept price negotiations. m(_ _)m If you have any other questions, please ask in the comments section. Thank you for viewing. (^^) Fin System/Fin Box: FCS2