- the clever way Robust motor brushes for repairing your electrical devices instead of buying new ones – save money and resources by easily repairing your devices yourself. Dimensions: 30 x 12 x 6 mm – precisely manufactured and durable. With spring. Motor brushes are used to conduct electricity to the commutator or other moving parts of a motor. It is normal for carbon brushes to wear down over time. When the brushes are worn, your device may not work at all or may function poorly. Simply replace the old motor brushes with these high-quality replacement brushes and restore your device’s performance. There is a wide variety of motor brush types. Each manufacturer and device uses different sizes and shapes. It is not always possible to list all compatible devices. Please compare the shape and dimensions of our motor brushes with the ones from your device to ensure compatibility. Package includes: 2 x Carbon brushes Technical specifications: Material: Graphite Dimensions: 30 x 12 x 6 mm With spring Weight (set): 11 g Compatible with the following device models: Rainbow D3 Rainbow D4 Rainbow D4G SE Replaces the following original part: Rainbow RX-R/2421 - the clever way High-quality replacement parts and accessories for extended lifespan of your electrical devices.