This is an inventory adjustment price. We are always listing at the lowest price at the time, so please comment if it's not the lowest price. 28mm Mahjong Tile Singles A set of 9 tiles, one of each type of "sou" (bamboo suit). The backs of the tiles are yellow. These are the same size as the most common size used in automatic mahjong tables. They are suitable for practicing tile handling or for crafting. Instant purchase OK, bulk purchases welcome, and anonymous shipping.