Durable ABS Material: This surfboard SUP fin is made of ABS with smooth and delicate surface treatment, which can be stably fixed on the surfboard. It has the high strength, anti-UV and anti-aging, anti-corrosion, not easy to break, strong and durable. Streamlined Appearance: Our surfboard fins are unique in shape and resemble fish fins. The streamlined appearance conforms to the physical principles of water sports, which effectively improves the flexibility of the surfboard. A Safer Surfing Experience: Our surfboard fins increase the stability and balance of the surfboard, effectively reducing the impact of the reef when paddling. This surfboard fin can improve your surfing experience and bring you more surfing fun. It is very suitable for you who love surfing the fin dock. You can glue the fin base on the back end of the surfboard first, so you can install the sup fin on the ski base. Easy disassembly also makes the surfboards easier to carry. Wide range of applications: Long board center fin have a wide range of applications. Suitable for various water sports, this center fin is not only suitable for surfboards, but also can be installed on kayaks, surfboards, paddleboards, canoes and pedal boats. It is very suitable for surfers who like to spin.