Yellow Mountain Imports American Mah Jongg (Mahjong, Mah Jong, Mahjongg, Mah-Jongg, Majiang) Playing Cards Portability; play mahjong anywhere with these high quality American mahjong playing cards Versatility; 178 cards with which you can play both American and Chinese rules; this set can also be used to play mahjong poker; instructions are not included Durability; cards are made of genuine PVC plastic for durability and ease of dealing Same rules as time versions; plays just like the full tile versions of mahjong 30 day return policy; here, at Yellow Mountain Imports, we want you to be satisfied with your purchase; you are backed by our 30 day no questions asked money back guarantee so you can buy with confidence Card: 3.4 x 2.2 inches (8.7 x 5.7 centimeters) Plays just like the full-size tile version but in a convenient, portable card format. 178 cards with which you can play both American (Western) and Chinese rules. The cards are made of genuine PVC plastic for durability and ease of dealing.