Our natural Stone Coasters do more than eliminate watermarks—they dry quickly! Created with diatomaceous earth, Dorai’s Stone Coasters are both sustainable and designed to rapidly remove moisture. Each one of our modern coasters is a different shape, emulating the unique, natural qualities of stones. The Stone Coaster Set includes four coasters that pair perfectly with a beverage of your choice. Dimensions: Length: 3.94" Width: 3.94" Height: 0.3"