3dRose CST_119411_1 Photo of Gray Blue Green Slate Marble Print Tile Soft Coasters, Set of 4 Dimensions (in Inch): 3.5 H x 3.5 W x 1/4 D Comes in a set of 4 - same image on all coasters Washable - to prevent image from fading clean with mild detergent using cool water Absorbs moisture Made of recycled rubber