- the clever way Robust motor carbon brushes for your electrical device. Repair instead of replacing – save money and resources by easily repairing your devices yourself. Dimensions: 30 x 12 x 6 mm – precisely manufactured and durable. With spring. Motor carbon brushes are used to conduct electrical current 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 function poorly. Simply replace the old motor carbon brushes with these high-quality replacement brushes and restore full functionality to your device. There is a wide variety of motor carbon brushes available. Each manufacturer and device uses different sizes and shapes. It is not always possible to list all compatible models. Please compare the shape and dimensions of our carbon brushes with those from your device to verify compatibility. Package includes: 2 x Carbon brushes Specifications: Material: Graphite Dimensions: 30 x 12 x 6 mm With spring Weight (set): 11 g Compatible with the following 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 long-lasting performance of your electrical devices.