Natural Agate Coaster. The edges of each piece are electroplated (not gold leaf or gilded, which may rub off) with beautiful thick metallic GOLD Sold as a set of 4 pieces 4" x 4" 10 - 12 mm thick Natural stone will vary in size, color, and appearance Each piece has 4 rubber pads to avoid scratching the surface Wipe clean Can do Gold, Silver and Rose Gold edgings All platters and coasters are food safe