1Aluminum Alloy: Made of aluminum alloy material, high strength, sturdy and durable, pressure resistance. 2Good Performance: High performance aluminum alloy windsurfing mast extension with rod and base mount adapter. 3Scope of Application: Professional manufacturing, universal and fit for RDM standard main rod. Perfect accessories for windproof surfing windsurfing sports. 4Corrosion Resistant: Windsurf extension rod adopts fine workmanship, which is corrosion resistant. Full length is 27cm / 9.7in. 5Good Workmanship: Adopting exquisite workmanship, beautiful appearance design, providing you great using experience. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.