Each Obi and Shell Divination Tray is hand carved in wood with a clear lacquer finish on it. Approx 13� in diameter and half and inch thick. The artwork in the center is from artist Omitola. A very talented Ifa devotee. He spends quite a bit of time creating each one individually. Fantastic idea for the use of containing your Divination tools while casting. We just love being able to offer these finally!