Add classic sophistication to seasonal gatherings with marble coasters that celebrate the dramatic beauty of the stonemason's art. Each piece is distinguished by rich hues and intricate markings as unique as the stone from which it was cut. Coasters have smooth[?] backings to protect surfaces from scratches. Hand-carved of white-and-gray marble. Natural color and texture variations in the marble make each coaster unique. Set of four. A Williams-Sonoma exclusive.