The first and only brush specifically designed for convertible tops, SUV Soft Tops, and Tonneau covers. RAGGTOPP HAARTZ Premium Convertible Top Cleaning Brush is the first brush developed and endorsed by The HAARTZ Corporation in the company's 109-year history. The brush's bristles are made from fibrillated Nylex, which is soft, yet strong, to gently loosen the dirt and debris from fabric and vinyl soft top material. The bristles clean gently and do not damage acrylic cloth or vinyl convertible tops materials. Haartz Corporation manufactures convertible topping products to the exact specifications of the world s leading automakers. 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 and soft tops while minimizing damage to the fabric was a natural next step. Through a partnership with Wolfsteins and HAARTZ on RAGGTOPP cleaning products, both organizations came together to develop a tool to help convertible owners protect their investment and the RAGGTOPP Convertible Top Cleaning Brush was strategically developed.