The Spinning Tray is the perfect place to spin your tops. Each one is made of white molded plastic. The spinning surface is concave and there's a rim around the edge so that your tops don't go wandering off. While the spinning tray works with all tops, it's especially nice for long spinning tops and tops that tend to travel (such as filp-over tops). The spinning area is just under 8 inches in diameter (204 mm). There is a rim and a lip at the bottom which supports the tray. The total width is 9 inches (230 mm). For added stability, one side of the tray extends and is squared. Total length is 10 3/4 inches (273 mm).