- the clever way Robust motor 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. Includes spring. Motor 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 over time. When the brushes are worn, your device may not function properly or at all. Simply replace the worn motor brush with this high-quality replacement brush and restore your device’s performance. There is a wide variety of motor brushes available. 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 brush with the one from your device to verify 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 long-lasting performance of your electrical devices.