Thanks to diamond dust, the product easily removes any stubborn stains and polishes small defects, including micro-risks and marks from wipers. It is used only on the outer surface of the windscreens and rear glasses. A convenient sponge is attached to the product! Use Willson polish for transparent plastic, part number 02071, to clean and restore surfaces made of transparent plastic. Application: Wash the dirt off from the surface before applying the product. 1. Thoroughly shake the bottle before application. 2. Squeeze the product on the sponge and evenly apply it on the glass surface. 3. Polish the treated area with a clean cloth and wipe dry. If the expected effect is not achieved, repeat the procedure several times.