Features:1. Replacement carbon brush for you easily replacing the broken one.2. It is conductive and thermal conductivity.3. It is durable in use.4. It is suitable for an electric motor, the coils of the rotor must be connected to complete an electrical circuit.5. 100% Brand New and high quality.Specification:Product Name: Carbon BrushMaterial: carbonModel: 99044Size: Approx. 7 * 17 * 18mm / 0.3 * 0.7 * 0.71inWeight: 121g / 4.3ozPackage list: 20pcs * Carbon Brush Note: 1. Please allow a little bit error due to manual measurement. Thanks for your understanding.