Approximately 40mm or 2”, Washed Round Rock is an appealing decorative stone that contains colours of grey, dark grey, brown and tan. The rock has a smooth round surface which makes it a great aggregate for landscaping and xeriscaping (landscaping with drought tolerant features). It can be used as ground cover beside driveways or on side yard areas where grass does not grow well. It is a great drainage material and works well as fill for retaining walls.