Carbon Fiber Square Tube with Rounded Inner Shape

Size. 5mm x 5mm side length in cross cection(Square), 4mm inner round diameter, 200mm 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. 1.5g/cm3(1.5 Gram per cubic centimetre) in density, strong as metal but only one fifth in weight. Corrosion-resistant and heat-resisting.
Smooth surface. Made from high tensile and modulus unidirectional carbon fiber, with polishing finish.
Application. Pultruded carbon fiber tube is used for racing drones, RC helicopter wing, RC airplanes and RC sailboats, kite spars.

Tube Shape: Square ouside with rounded inner
Cross Section Size: 5x5mm square, 4mm inner diameter
Overall Length: 200mm
Finish Type: Glossy
5 Pcs 5x5mm x 4mm Inner Diameter Carbon Fiber Square Tube