Waechtersbach Nesting Bowls, Set of 6, Buttercup Set of 6 Nested Serving Bowls High Fired Ceramic Earthenware hand-crafted in Germany Buttercup; Bowls nest inside of each other for efficient storage; Bright and vibrant colors; Waechtersbach dinnerware and accessories available for mixing and matching; Dishwasher safe; microwave use not recommended; None