Our quality placemats and coasters use a 5mm board topped with a unique and exclusive art print. Each is totally sealed with a high quality coating that is both stain and heat resistant to 212*F. The placemats and coasters are then finished with a hard-wearing cork back that protects precious furniture. Christmas Tree is one of the world's best known holiday designs since its introduction in 1938. Each season sees wonderful new introductions for collectors both old and new. Christmas Tree adds a distinctive charm to every table -- celebrating traditions and creating memories.