Mah-jongg pieces, also known as TILES, are small objects used in the game of mah-jongg. They come in various shapes and sizes and are usually made of plastic or bone. The pieces are divided into suits, with each suit having its own unique design. The most common pieces are the bamboo, character, circle, and dragon TILES. Each tile has a numerical value and can be used to form combinations and sequences. Mah-jongg pieces are an essential part of the game and are used to create the winning hand.