GeoStone provides an efficient solution for walls, columns, stairs, corners, and radii. The GeoStone Retaining Wall System consists of two units, a 36 lb and 72 lb module and can be used together in banding or true ashlar patterns. Between the two any requirement of an SRW system can be achieved. Most other systems accomplish this with twice as many units or more, resulting in a higher manufacturing and inventory cost. The GeoStone concept is to keep it simple.