Features: 1.Made of high quality PVC material, which plays a vital role in improving stability, balancing steering maneuvering and traction. 2.This long fin features a practical, user friendly design with a quick release detachable system that slides in and out in seconds. 3.The center fin is designed to ensure optimal compatibility with most surfboards, paddle boards, kayaks or longboards. 4.Whether you're a professional paddle boarder or you recently decided to embrace this wonderful sport, the 11in/28cm detachable center fin is suitable for you. 5.High quality durable surfboard fin, can be long term used, good reliability, practical in use. Specification: Item Type: Surf SUP Fin_x000D_ Material: PVC_x000D_ Size: Approx.11in/28cm_x000D_ Installation Type: Fixed Socket Type_x000D_ Color: Black_x000D_ Features: Plays an important role in improving stability, balanced steering handling and traction_x000D_ Compatible: Compatible with most surfboards, paddle boards, kayaks or longboards, ideal for a variety of brands and board sizes PackageList: 1 x_x000D_ _x000D_ Surf SUP Fin