Description:1.Widely used in Gear shaft, motor shaft, short support shaft, shaft pocket model, miniature axle, model plane, model ship, model cars2.Strong rust-resistant and corrosion-resistant, sturdy and durable3.The surface is smooth, easy to shape, no cracks formedSpecificationMaterial: brassColor: copper toneDiameter: 4mm/0.156inchLength: 300mm/11.7inchPacking details: 2pcs x brass round rodNote:Please allow 1-5mm error due to manual measurement.