Harley-Davidson® High Grade Coaster Set, CS132864. Made of heavy-duty sandstone. These coasters are made from an exclusive super absorbent material that has the remarkable ability to instantly soak up drips and condensation from drinks. Instantly absorbs moisture from hot or cold drinks. Protects furniture surfaces from moisture damage. Printed distressed H-D design is permanent and will not fade. Set of two matching sturdy coasters. Size: 4" diameter, 0.25" thick.