You can put them together by side and put them in good hands. 500 pieces for lots of play Not only can it be used for dominoes, but also for a variety of play games, but also can be painted to increase the circle of play. One large size makes it easy for toddlers. Activate the right brain by concentrating your nerves on your fingertips and develop concentration. (Material/Size) Dominoes: Birch Wood, 500 Pieces, 2.4 x 1.2 x 0.4 inches (6 x 3 x 1 cm), Container Box: Polypropylene, 17.7 x 14.2 x 9.8 inches (45 x 36 x 25 cm). *The size of the box may change. We appreciate your understanding.