Attractive set of Green and White Mahjong Tile has 166 pieces, including 4 blanks and 2 extra jokers. It's always a good idea to have an extra set of tile around, since ultimately there will be lost or disappearing pieces, e.g., the cat, the dog, the toddler, all like the pretty colors!
Made from hard-baked plastic construction (durable resin product), each tile measures 2.2cm x 3cm x 1.3cm (approx. 7/8"W x 1 1/4"L x 1/2" thick). Dimensional Detail of complete packaged tile set: (W x L x H) = 4" x 20" x 3".
Some history of the mahjong tile material
Early mahjong tiles were constructed using bone and would more than likely backed with bamboo. Bone tile are still available but more often the modern mahjong tile set is made of a variety of materials including acrylic, celluloid, polyresin, Bakelite and even nylon.