1.Fiberglass PP composite blade, aluminum alloy shaft, durable and lightweight, floats in all waters. 2.102 square inches concave grooves blade design, less flutter, more stability and power. 3.Directly from manufacturer, rigorous control on quality and cost, best price in same product range. 4.Adjustable from 68to 84, ideal to share with families and friends of different heights. 5.Breaks down to 3 parts, easy to store and convenient for travelling.