CounterArt Initially Yours Monogrammed S Absorbent Coasters, Set of 4 Set of 4 absorbent coasters with playful monogrammed design with initial 's' Coasters are natural stoneware with decorative transfer print Each coaster has a durable cork backing to protect countertops and furniture Holders available; Look for CounterArt wood coaster holds ( sold separately) To remove stains, soak coaster in 1 part household bleach and 3 parts water until stain lifts, then rinse and air dry