Our support spinning bowls combine the efficiency of a ceramic surface with the stability of a wide beautiful wooden base (this is a Grizzly Mountain Arts original design). The ceramic insert measures 1 3/4 inches in diameter, and the gorgeous hard maple base is approximately 3 inches in diameter and 1 7/8 inches in height. Dave has adorned this bowl with a pyrographic Native American design and blue acrylic dots. The ceramic spinning bowl inserts were decorated by hand with accent glazes and kiln fired. Cork has been added to the bottom of this bowl to keep the wood from scratching other hard surfaces.