Melamine Single Go Game Convex Stones and Wild Jujube Bowls beautiful yet economic set of Go stones and bowls 181 black and 180 white Melamine stones. 21.5-22mm (Size 3) single convex stones measure 5.6mm tall and 22mm wide (approximately 0.22" x 0.87") Two wild jujube bowls (gosu) that measure 5.9" x 3.9" (150mm x 100mm) Sold by Thy Trading! Stock and fast shipping from the US!