Square Bridge Boards: It has six colors, blue, sky-blue, green, orange, yellow, and red. The direction marks N, E, S, and W are engraved on it. Net weight per board is 0.14kg and 16 boards are packed in a box. The price is ¥13~¥10/board, $1.9~$1.47/board FOB Chengdu, the larger the order, the lower the price.