[Practical Function]: Carbon brushes have good electrical conductivity, can effectively transfer the current, have a of wear resistance and pressure resistance, can withstand a certain degree of mechanical pressure, but not cause damage to the motor components, and also can provide stable performance, to the normal operation of the motor. [Maintenance and Replacement]: The structure of carbon brushes is relatively simple, consisting of carbon blocks and springs, making installation and replacement easy. Carbon brushes require regular maintenance and replacement to restore stable operation of the motor. [Wide Application]: Carbon brushes are widely used in motors, power tools, industrial equipment such as generators, cutting machines, drills, angle grinders, grinding machines, circular saws, miter saws, motorcycles, and so on. Please note: There may be slight color difference or discrepancy in the actual product, which does not affect the use, please don't mind, thank you! Color: As Shown Material: Carbon + Metal Package Contents: 46 * Electric Motor Carbon Brushes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.