Match and Learn with Junior Learning Things That Go Together dominoes are a great Early Childhood learning resource and an excellent manipulative for reinforcing key concepts. It includes 28 piece of melamine dominoes. The dominoes come in a collectors tin for storage and the game guide can be found on the back of it. A perfect addition to your classroom or home learning resources. Children will love and enjoy the feel of real dominoes as they complete the things that go together matching game. Dominoes measures 1.9 x 1 x 0.25 inches. For ages 3 - 5. Grade Pre-K - Grade K. WARNING: CHOKING HAZARD-Small parts. Not for children under 3 years.