Entatial Black Windsurfing Mast Extension Bar Windsurfing Mast Extender Base Sailboard for SDM Thick Masts

Wonderful accessory for windsurfing, sailboard and surfing water sports., Universal for SDM standard mast., With a pin and collar adjustment system for 5cm increments. Maximum length increased by 45cm., Very good mechanical properties, light weight and superior quality., High strength, sturdy and durable, corrosion resistance, durable.