20mm Gravel/Shingle consists of various angular and rounded stones that have been washed to remove fines and passed through various screens to create a 20mm Gravel/Shingle. Widely used in construction and domestic applications. A very popular cost effective driveway gravel. This product may vary in colour and shape depending on your location as it is sold for drainage and therefore colour is not an issue. The gravel in the main picture is for illustrative purposes only and may not be representative of the gravel in your area.