It isn't just one game, there are many games and variations at many skill levels.This Double Tewlve set has 91 domino pieces, and each piece has from one to twelve colour-coded dots at each end, or no dots (blank).

The pieces can be used to play 16 different games; instructions for all the games are included. Also can be used as an education tool including matching games, counting, probability, fractions and other problem solving activities.  

Made of a heavy white, ivory-like plastic.

Recommended for ages 6 years +