RAGGTOPP CONVERTIBLE Protectant and Cleaning products are manufactured by Wolfsteins Pro Series, and endorsed by HAARTZ, the world’s leading manufacturer of convertible topping fabric since 1907. HAARTZ is the designated supplier of convertible topping fabric for virtually every U.S. automaker and most European manufacturers, and is the world's only manufacturer of both PVC and cloth combined automobile and sport utility topping. RaggTopp products will not harm your paint, chrome, glass, or plastic windows of your convertible. That fact alone makes RaggTopp the choice for the auto-care professional as well as the weekend detailer. The RAGGTOOP app provides manufacturer approved information to help you improve the detailing process of your vehicle. Features include a handy reminder system to help you know when it is time to take care of your car.