The product is travertine and completely natural. It is 10 mm thick. Dimensions : 10 cm x 10 cm. Behind each of their products, a 1 mm cork mattress is adhered. The printing technology on its surface is very special and does not cause any harm to health. Water resistant. Heat resistant. Chemical material contact

may expose to corrosion on the surface. Box contents: 1 coaster in a craft box