Dominoes Double 12 Mexican Train Set with Colored Dots Set of 91 White, Professional Size, Color-Coded Dot Dominoes. (Double 12 set indicates 91 dominoes) Plastic Centerpiece (Starter Piece) used for Mexican Train Dominoe Game Variation. Play Mexican Train Dominoes, Standard Dominoes and many other game variations with this set. Includes 8 colorful, small, plastic train markers. Dominoe store in vinyl case with snap close clover.