This spinning bowl is made from a box elder burl cap. It is approximately 3/4" (1.9 cm) tall and 2 1/2 to 3 inches (6.4 to 7.6 cm) in diameter. The spinning surface is approximately 1 1/2 to 1 3/4 inches (3.8 to 4.5 cm) in diameter. There is a neoprene pad on the bottom to prevent the bowl from slipping on hard surfaces that can be removed if desired.