Just drop a ROKit Williams Racing All Season Screen Wash Tab into the 5L Screen Wash Can & fill with water to dissolve. Once dissolved, pour the solution into the washer tank. Key Features & Benefits Simply drop into the 5L Screen Wash Can & fill with water to dissolve & then pour into the washer tank One tablet makes up to 5 litres of Screen Wash Reduces plastic use Environmentally friendly Keep in your glove box Use of these dissolvable tabs saves up to 300g in plastic waste Contents 8 x Rokit Williams Racing All Season Screen Wash Tabs 1 x 5L Screen Wash Empty Can