Counter Art Absorbent Coasters Monterey Bay-Whale In Wooden Holder, Set of 4 Set of 4 absorbent coasters in an attractive wooden display holder Coasters are natural stoneware with decorative transfer print Beautiful, colorful design meets high functionality with this coaster gift set Holder is made of durable rubber wood with a clear varnish finish To remove coaster stains, soak coaster in 1 part household bleach and 3 parts water until stain lifts, then rinse/air dry