3dRose CST_19448_1 Construction Spheres Shows Floating Spheres with a Surrounding Copper Caging Glow Soft Coasters (Set of 4) Dimensions (in inches): 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