• Solid round copper rod, ideal for various types of shafts such as gears, motors, short supports, miniature models of airplanes and boats. • Package of 1 copper rod unit with a diameter of 3mm (0.011 inches) and a length of 300mm (11.7 inches). • Made with high hardness copper, resistant to oxidation and corrosion, with excellent thermal conductivity. • Smooth surface and easy to mold, can be cut to the desired size according to needs. • Note: There may be a manual measurement error of between 0.1-0.5mm.