Not just a coaster but an expertly handcrafted photo transfer onto a white marble coaster. Unique in every way. To be used as a piece of art. Best given to someone who loves to receive something special. Best to receive as a housewarming gift, wedding gift, going away gift, birthday, holiday and just because gift. They can be used with very hot coffee cups or a cold Chardonnay. Can be washed but not submerged in water because the corked backs aren't sealed.