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 Material: PVC Size: Approx.11in/28cm Installation Type: Fixed Socket Type Color: Black Features: Plays an important role in improving stability, balanced steering handling and traction Compatible: Compatible with most surfboards, paddle boards, kayaks or longboards, ideal for a variety of brands and board sizes PackageList: 1 x Surf SUP Fin