Complete Set: The Go board contains a 19x19 playing field. This set includes 181 black and 180 white magnetic plastic single convex stones and a set of two plastic holders. Made with Durable Materials: This magnetic Go game set is made with high quality plastic for a solid and smooth surface. The board unfolds to be completely flat. A pair of bowls stores the Go stones and fits perfectly inside the folding board for storage and transport. Travel Ready: The magnets attached to the plastic stones are strong enough that you can even flip the board upside down. Nevertheless, the stones are still able to be moved around the board with ease while playing. This set is lightweight and easy to carry. It is extremely portable. Slip it into a backpack and take it out to play in any car, train or plane making your trip much more enjoyable.