Serve snacks, wash berries, or mix up a tasty treat in these handpainted bowls. Organic shapes and earthy tones make for the perfect mix-and-match collection. Material content: stoneware with a reactive glaze. Care instructions: microwave and dishwasher safe. The nature and beauty of reactive glaze is that each piece is unique. There may be slight variations in color, texture, and finish to each perfectly imperfect item.