Durable PVC fins with a smooth surface and matte texture for strength, wear resistance, and long life. Improved water stability, control and maneuverability. Suitable for beginners and experienced paddlers alike, helping to maintain buoyancy and responsive handling for a reliable paddleboard experience. Wide compatibility: fits most fin box bases found on inflatable paddleboards, kayaks and longboards. Provides balanced tracking and stable turns for smooth maneuvering. Easy installation: insert into the fin box and tighten. No tools required for quick, hassle-free fin replacement and immediate paddling. Use scenarios: - Inflatable SUPs in calm water or light chop for steady tracking during learning and casual cruising. - Touring kayaks to replace worn fins and restore tracking in rivers or coastal waters. - Longboards for enhanced turning stability and controlled carving during recreational rides.