Single Image Absorbent Stone Tumbled Tile Coaster Set of 4. Made in the USA of absorbent stone to absorb excess condensation from beverages. Cork backing protects your surfaces from scratches and stains. Each Coaster measures 4 inch by 4 inch square. Beautiful artistic designs allow the Coaster to remain displayed even when not in use. This 4 pack Coaster Set makes a wonderful gift for family and friends at any time of the year. Look for CounterArt coordinating Placemats Cutting Boards and Lazy Susans to complete your own home design.