Go in a Box
Hinged folding plywood board with black and white go stones (7mm deep), kept inside in twist-lid black tubs for easy storage.
Medium: 18" board has a 13x13 playing area on the front, with a 9x9 area on the back. 90 black and 90 white stones included.
Large: 20" board has a 19x19 playing area on the front, with a 13x13 area on the back.180 black and 180 white stones included.