Feature●Size and Shape: pultrusion rounded tube with 4mm outside diameter, 2mm inner diameter, 420mm overall length.●Pultrusion: pultruded tube means that all the fibers are in one direction, which makes it stronger than the woven tube in tension.●Lightweight: strong as metal but only one fifth in weight, corrosion-resistant and heat-resisting.●Smooth Surface: made of high tensile and modulus unidirectional carbon fiber.●Application: pultruded carbon fiber tube is used for racing drones, RC helicopter wing, RC airplanes and RC sailboats, kite spars.Description