The board is about 15.5cm, and there are three chessboards on the outside (the chess/chess/flying chess, in which the chess and chess share a chessboard), and there are two chessboards (checkers/snakes) inside the cover. small pieces with magnets, the board is also magnetic, so don't worry that the pieces will be too small to stand or loose their cymbals. there is a magnetic that is very small and practical. it is suitable for school teaching aids and giveaways.