Marble is the medium of choice for fine palaces, mega-mansions, and designer kitchens, so we're not exaggerating when we say these marble coasters will make your logo look like a million bucks! These square coasters are incredibly heavy-duty and made for repeated, high-end entertaining, while never losing their luster. Because it's a natural material, each coaster will have its own color variation. Hand wash and wipe with a towel to dry.