Windsurf gear Spares Windsurf Baseplate Spares Baseplate Spares new Converter (U-Pin) to (US-Push Pin) System HD Power Joint M8/M8 Cardan Joint M10/M10 Tendon Joint Basic Spare Part Tendon Joint PRO 20-mm Diameter - With Holes new Tendon Joint HD 20-mm Diameter - With Holes U-Pin Short M10 External U-Pin Long M10 External U-Pin Short M8 Internal Power / Boge Joint Stud M8 X 45 - A2 Stainless Steel Washer M Brass Baseplate T-Nut M8 Kid Rig Adapter (Stiff Improved Version)