RIRIKU Resin Coaster Set of 4

Set of four milky off white coasters with rounded corners and rubber knobs on the bottom to protect the surface they're placed on. These coasters are individually poured and molded, making each coaster unique in color and marbling pattern. Dimensions w/out packaging: 4 X 4 X 0.5 inches Product material: Resin, liquid color, stone powder