Upgraded Sevylor Fin, Spare, Red Fin, Kayak, Canoe, Paddleboard, Skeg Fitments: For all Sevylor Range models that have integral fixing points on the hull Colorado, Hudson, Adventure, Reef, Rio, Madison, Waterton, etc. Also suitable for Z Pro Tango range of kayaks and many others Tracking fin compatible with most kayak boats Designed for simple installation and mounting Helps reduce water resistance, keeps your kayak going straight, and improves tracking performance High-quality PVC material, strong, durable, and sturdy Lightweight, portable, and easy to carry Specification: Material: PVC Size (L x H): Approx. 15 x 10 cm / 5.91 x 3.94 in Color: Black Package Includes: 1 Piece Kayak Skeg with base Note: Please check and confirm the size is compatible with your kayak skeg; allow 1-2 mm size deviation