Color: White Carrara, Thassos White & Gold Metal Overall Product Weight: 4.25 lb. Dimensions Mosaic Sheet: 14.125'' W X 12.4'' L Individual Tile: Multi Sizes Pattern Overall Thickness: 0.31 Surface Area per Carton: 8.47 SqFt This is a natural marble mosaic tile. Regular stone sealing is required and non-sanded grout is a must.