High practicality A carbon brush is used to transfer power or signals between the fixed part of the generator and the rotating part.Durable in use This is for a set of carbon brushes used in generators for charging , good reversing performance, long service life. Stronger function with good conduction, heat conduction and lubrication properties, and have certain mechanical strength. Perfect replacement This carbon brush contains 10 pieces, enough for replace the broken one in your generator.Best for This carbon brush set is suitable for 5KW-8KW generator. Note: The data is all measured manually, please allow 1-3cm error, due to the difference of light and display, there will be a certain color difference, the actual object received shall prevail.