100% brand new and high quality. The carbon brush is an element that is easy to break when it is working. It is convenient to replace the carbon brush. Conductive, thermal conductivity Suitable for the operation of an electric motor or generator, the rotor coils must be connected to complete an electrical circuit color: black Material: metal size: 5 x 8 x 16 mm Package Contents: 160 x Carbon Brushes Replacement Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.