New, unused, price reduction. These are twin keel fins made with the same material used by major fin manufacturers. The fin style is designed with a wide base, similar to the classic K2 model. ◎Honeycomb structure is highly porous and lighter than general resin foam or plastic. High strength and rigidity: The collection of hexagonal cells provides superior compressive strength and durability compared to other materials of the same weight. The unique excellent flexibility of the honeycomb core makes it more flexible than fiberglass, achieving "medium flex" with excellent control and responsiveness. The honeycomb structure provides high shock absorption from multiple directions, and durability is improved because impacts are dispersed rather than concentrated. All-around performance: Lightweight and moderately flexible, making them recommended fins that are easy to use in a wide range of wave conditions, from beach breaks to reef breaks. Experience the outstanding flexibility of the honeycomb core. Can be used regardless of board shape. Recommended fins for those who want to try keel fins. ◎This is a no-brand product. ◎Please understand that the actual color may differ slightly from the image due to camera resolution. ◎Please note that shipping via Yu-Packet Post or Neko-Pos may take 3 to 10 days or more after shipment. ◎Size Height approx. 118mm Base approx. 160mm Deep box height Flat foil ◎There are two types of future fin box heights: deep boxes marked with an "f" and shallow boxes marked with an "x". We cannot accept returns, exchanges, or complaints due to incorrect fin box height. Please check your board before purchasing. Thank you for your understanding. If the fins are difficult to attach or detach, please adjust them by sanding, etc. ◎Although new and unused, there may be minor scuffs from the manufacturing process or storage. These fins are handmade by craftsmen using machines. This is a very good deal for those who don't mind minor imperfections. #futures #FCS #MR #AMTwin #Twinfin #wax #boardbag #Simmons #FishSimmons #Alternative #K2 #Alternative #shortboard #midlength #twinfin #centerstabilizer #fin #futurefin