Features delue triangular tiles with brass spinners. Classic domino gameplay with added strategy. More than 21 million units sold. A great addition to your game collection. For 2-4 players, ages 7 and up Learning Skill: Math Recommended Ages: 7 Years And Up Measurements: 10.5 Height/Inches, 7.75 Length/Inches, 2.5 Width/Inches Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported