Play, study or teach Go on this handy magnetic set with 19x19 playing field. It rolls up easily into a carrying tube, yet will lay flat on any surface. Magnetic 19x19 Roll-up Portable Travel Go Game Set Set includes: Magnetic go board (goban) with 19x19 playing field180 white stones181 black stonesStorage caseGo stone cloth pouchesBooklet on how to play Go, "The Way to Go", by Karl Baker Benefits of Playing Go Playing Go is known to exercise both halves of the brain, develop spatial awareness and memory It teaches constructive focus, cooperation in the service of a larger goal, restraint and balance Solid Single Convex Stones These go stones magnetically attach to the board allowing you uninterrupted play amidst unintentional movements.