This is a Professional Tiles Double 9 Dominoes set that comes in a maroon red vinyl snap case perfect for storage and transport. The Professional tiles are slightly bigger than the Standard, and smaller than Jumbo. They measure 1 x 2 x 3/8 inches. These are white with black pips or dots. This Double 9 set is also available with a Spinner. For just one dollar more, click on the second buy link to get the Professional Tiles set with a Spinner.