Feature: 1. 1. This is a tracking fin suitable for most kayaks. 2. 2. High quality PVC material, strong and durable. 3. 3. Installed in the kayak to separate water, reduce water resistance, easy to install, no tools required. 4. 4. Help balance stability and prevent water ingress of surfboards, longboards, paddleboards and canoes, etc. 5. 5. Lightweight and portable, easy to put on and take off. Specification: Size: 21x6.5x6cmMaterial: PVCWeight: 70gpieceColour: Black Package List: 2 x Kayak Fin1. This is a tracking fin suitable for most kayaks. 2. High quality PVC material, strong and durable. 3. Installed in the kayak to separate water, reduce water resistance, easy to install, no tools required. 4. Help balance stability and prevent water ingress of surfboards, longboards, paddleboards and canoes, etc. 5. Lightweight and portable, easy to put on and take off.