Waydoo US Fin Box Mount: The fin box mount is designed for stand up paddle boards, hardboards. The Fin Box Mount is the ideal accessory for anyone who wants to turn their paddle board into a stand-up paddle board. This innovative product is designed to provide a stable and secure platform for your fins, making it easier to maneuver and control your board. The Fin Box Mount is made from high-quality materials and is built to last, providing you with a reliable and durable accessory for your paddle board. Whether you're a beginner or an experienced paddler, the Fin Box Mount can help you get the most out of your board.