The game is designed to help young children develop hand to eye co-ordination, and fine motor skills. Game includes 25 blocks of various shapes. Approximate Pieces/Block Size: 1.5" x 1.25" x 1.5" From Publisher Website: Take turns to stack blocks and make a tall tower. Who will make it wobble and fall? Use the colors, shapes and numbers in your game. Try stacking different shapes in turn, match up colors, or let the dice decide.