The number of tile in any given set can vary in numbers depending where the game originated, usually there is never less than 136, however there can be up to 166 tiles in a set.
They may also be referred to as playing cards in some areas, the type and style of play varies from one country to another.
The material used for the tile can be plastic, bone with bamboo backing with pressed characters in each tile representing a variety of symbols important to the game.
Expert players do not even need to see the tile but rather with just feeling can tell you the face value.
Size of the tile may very however there has been somewhat of a standard that usually falls in this size category:
Size 8 ~ 39 × 30 × 23 mm
Size 7.5 ~ 38 × 28 × 22 mm
Size 7 ~ 36 × 26 × 21 mm
Size 6 ~ 34 × 25 × 19 mm
If you are looking for complete Mahjong game sets browse our Mahjong page that includes a variety of game sets.