Sunflower Marble Drink Coasters - Set of Four Tile Summer Coasters - Farmhouse Gifts

To clean: Use a damp cloth, when the coaster gets wet it will turn a tan color, it will dry by to normal color, however they may stain if a liquid other than water sits on them. Do not put in the dishwasher or leave sitting in water since the cork might get ruined. The coasters pictured above are not necessarily the ones you will receive since multiple sets are offered, however they will all look similar. While the set will match, each stone will look slightly different from the next due to the wonderful natural pattern of specks of color, streaks, grooves, small holes, chips, and rounded corners.