Smooth, rounded granite boulders in stunning shades of pink, blue, white, and green. With a longest diameter of 36″ to 60″, these XL boulders are ideal for creating bold retaining walls, natural barriers, or accents in large-scale landscapes. Granite boulders can also be used to protect certain areas, prevent vehicle access, or create boundaries without the need for artificial fencing. Approximate coverage of 6.5 face feet per ton