What are the three main suits in Chinese Mahjong?

The three main suits are Characters (萬/Wan), Bamboo (條/Tiao), and Circles (筒/Tong). Each suit runs from 1 to 9, with four copies of every tile, giving 36 tiles per suit. Characters are marked with Chinese numerals and the character for ten-thousand. Bamboo tiles are illustrated with bamboo stalks (with the 1-Bamboo typically shown as a bird). Circles are depicted as round coins or dots.