Hand-made from top grade graphite material Crafted for top quality & maximum effectiveness 100% attention from hub to tip for optimum performance Every prop is individually inspected & pre-balanced for immediate use from package High gloss, clear epoxy gel-coat over black woven carbon fiber Features hollow blades fabricated from unidirectional and bi-directional carbon fiber and epoxy Solid Hub area allowing them to be drilled for multi-bolt hubs Designed to enhance engine torque and vertical performance One of the quietest propellers available