Wilmax Natural Bamboo Saucer Square 6 x 6 inches / 15 x 15 cm Dimension: 6″ X 6″ 15 X 15 CM Made of Natural Bamboo Absolutely safe for health. Safe for direct contact with food. Wash with water and liquid soap. Recommend using soſt sponges for cleaning. Avoid soaking and using hot water. Not recommended for microwave.