MECCANIXITY Carbon Fiber Rod, 3mm x 420mm for RC Car Airplane DIY Tool Wing Tube Quadcopter Arm, Pack of 12

What is this?The carbon fiber rods are used for quadcopter helicopters, RC airplanes, scale models, railing, indoor kite making, repairing a graphite fishing pole, wing or tails reinforcing, and reinforcing for RC planes, etc.What will I get?Material: Carbon Fiber;Diameter: 3mm(0.12 inch);Length: 420mm(16.5 inch);Pack of 12 Pcs x Carbon Fiber Round Rod;Are there any advantages of the product?Carbon Fiber Rod is used of high-tech carbon fiber composite material. Great for construction that requires great strength without excess weight.High strength, corrosion resistance, surface smoothness, straightness good, stable performance.Its specific strength and elastic modulus are actually higher than carbon steel, yet it is lighter than aluminum.It has good electrical conductivity and very good tensile strength.Decorative carbon fiber tube at the same time has the appearance of 3D effects.How to use it?Carbon fiber rods perform particularly well in bending or compression applications. can be cut to any length.What should I notice?Please allow 1-5mm error due to manual measurement.