The quality placemats use a 5mm board topped with a sole and exclusive art print. Each are totally sealed with a high quality coating that is both stain and heat resistant up to 212°F. The placemats are later finished with a hard-wearing cork back that protects the valuable furniture. These Pimpernel large placemats are 15.7in by 11.7in and come as a set of 4. . Wipe clean with a damp cloth.