The brush's bristles are made from fibrillated Nylex, which is soft, yet strong, to gently loosen the dirt and debris from your convertible top, SUV soft top, or Tonneau Cover. The bristles clean gently and do not damage acrylic cloth or vinyl top materials. 
HAARTZ Corporation manufactures convertible topping products to the exact specifications of the world’s leading automakers. Extending that precision to the development of a brush that effectively cleans convertible tops, SUV soft tops, and tonneau covers, while minimizing damage to the fabric was a natural next step. Through a partnership with Wolfsteins Pro-Series and Haartz on RAGGTOPP™ cleaning products, both organizations came together to develop a tool to help soft top owners protect their investment.