Size - 13.5mm x 12mm x 6.5mm (LxWxH), Spring Length: 37mm/1.5Inch, Type:DWE402 Carbon Brush. Material - Electric motor carbon brushes are mainly made of carbon materials, which have good conductivity and wear resistance. Feature - Carbon motor brushes are used to transmit power to rotating or moving parts, such as motors and generators. Or they play a role in reducing friction and protecting equipment at the contact point between rotating parts and fixed parts. Application - Replacement carbon brushes are widely used in various power tools and motors, such as electric drills, electric fans, electric bicycles, electric cars, washing machines, vacuum cleaners, circular saws, miter saws, drill bits, rotary hammer drills, dust collectors, lawn mowers, cutting saws, blower motors, cutting saws, etc. Note - Make sure the contact of the carbon brush is clean to avoid dust affecting the conductive effect, check the wear of the carbon brush regularly, and replace it in time to the normal operation of the equipment. Colour:Black Material:graphite Package Contents: 8 * DWE402 Carbon Brush 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.