Mothers Brake Dust Brush car wheel tire HB20330 Mothers Brake Dust Brush is a plush, polypropylene brush that loosens stubborn brake dust without scratching the delicate finish of your wheels. Since factory wheels are often painted or clear coated, this brush is a must-have for practically all car owners. Polypropylene is softer than nylon because the bristles are typically thinner than nylon bristles. These softer bristles are less abrasive to coated, painted and plated wheels. Mild agitation is all it takes to remove the brake dust and leave your wheels crisp and clean. Mothers Brake Dust Brush is packed with bristles to whisk away brake dust without scratching coated, painted, plated, or polished wheels. The round head fits between spokes to clean multiple surfaces at once. The bristles are held in place by a thick interior wire, which will never touch your wheels thanks to the plush bristles. The handle of the brush has a textured, rubber grip and an ergonomic shape that’s easy on your hands. The bristles are chemical resistant and suitable for use with any wheel cleaner. Mothers Brake Dust Brush gently loosens brake dust so it rinses away. Plus, the narrow brush head is excellent for cleaning between spokes.