Manufactured using NYLEX bristles that are soft enough to cause no damage, but strong enough to fully clean your convertible top, and set into an ergonomically correct wooden handle, the RaggTopp Premium Convertible Top Brush is, without a doubt, the best brush for your fabric or vinyl convertible top. The Haartz Corporation, the world's leading manufacturer of convertible topping for virtually every American and European convertible automobile manufactured throughout the world, worked closely with RaggTopp on the production of the RaggTopp Premium Convertible Top Brush. In fact, it is the first brush in over 109 years developed and endorsed by the Haartz Corporation. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.