This special mixed soft yarn brush prevents the back splash that other nylon bristles may give you. With this soft netted yarn wheel brush, you will not have to worry about scratching the rims. The size of this wheel brush is 18 inches, and a 2" diameter yarn can clean hard to reach area and behind the wheel to wash out stubborn brake dust without scratching. It also has a plastic tip to prevent scratch accidently. This is a great tool for any car enthusiast or detailer. Wholesale by Golden State Trading Inc. Car maintenance and routine washes doesn't mean you have to overspend. Check out Golden State's constant evolving car care product line for more new products, like this one!