Size: 16 oz. The next time a rain storm hits, you'll be smiling and feeling very safe in your car, as you can see clearly out of all windows now. You'll also find yourself using a slower wiper setting than you used to. Heller Glänz™ Rain Shield Glass Treatment is formulated with a transparent polymer that that makes rain, sleet and snow to bead-up and roll off. Heller Glänz Rain Shield Glass improves all weather visibility, safety and driving comfort. Formulated for marine conditions to reduce the loss of visibility due to spray, waves and rain. The nonstick, invisible barrier repels water improving visibility, safety and driving comfort for every boater. Safe for glass and plastic applications.