Stacked rock cairns have been used since ancient times to mark landmarks, trails and historic sites. Our Garden Cairns come with a non-rusting aluminum rod that can be inserted into the bottom of the cairn and placed in the ground for additional stability. Includes cork feet for optional indoor use. Available in two sizes: Short (9" tall), Tall (13" tall). Stones vary in shape, size, color, texture, weight and may or may not have natural mineral deposits. Due to those variations, the item pictured is an example only and will not be exactly what is received.