double dominoThe most common domino set is the double-six set, consisting of 28 dominoes, each having a combination of dots from 0 to 6, coming to a total ofRegal Games Mexican Train Double 12 Dominoes Set for Adults & Kids - Domino Game with 91 Tiles Colored Dots & 4 Metal Trains - 2-8 Player Games & Ideal for Family Fun Game Nht and Travel