Place your favorite beverages on the classic Coral Fossil Coaster Set. Crafted of 100% natural marble, this set will bring a unique look to your home. All six coasters are made of coral fossil and will have natural veining which adds to the beauty of the set.About R&S Designs Established in 1989, R&S Designs has been offering quality products hand-crafted from stones formed millions of years ago -- dating back to the pre-Jurassic period. Using natural stones for their products adds a unique distinction that outshines products made of synthetic materials. Their skilled artisans have mastered the art of marble carving so each piece has it"s own distinct character that is not only creative but cannot be duplicated. R&S has been supplying numerous retail operations throughout the United States, and now they bring their masterpieces directly to families who want to create lasting impressions with quality products.