The Sandstone Top Hole Ribbed Wall Art - Set of 2 provides a fascinating focal point for any room. The abstract ribbed design features gray sandstone circles with a hole offset to one side. It's sure to cause some discussion about what that hole represents. The set of wall art includes two separate pieces, enabling you to create a sense of symmetry. Includes 1-year limited warranty. Small: 16-inch diameter. Medium: 20-inch diameter. Large: 30-inch diameter.