Playing dominoes is fun. And Tri-Domino is three times as much fun! Purpose: The triangular tiles must be laid in such a way that a large triangle is created with a 4 or 5 times the edge length. 2 - 4 players will have a lot of fun with the game. Features • Recommended age: 5+ • Material: wood • Number of parts: 72 • Dimensions: 3.4 cm