Robust and beautiful, these coasters are made from natural granite. Great for stopping spills and stains. The coasters will look great when paired with the granite placemats. Phone holders, serving trays, placemats and other homeware are also available in this collection. Measurements: 10 x 10 cm (4" x 4"). Heat resistant to 150C (302F). Ideal as a gift for a nature loving friend. Creative Tops Naturals Pack Of 4 Granite Coasters in Black