GraviTrax Junior: My Ice Starter SetGraviTrax Junior is a creative marble game system for children aged 3 and over . With Junior, even the little ones can build freely and have fun with the marbles. They can personalize their circuits with decorative elements such as animal figurines or plants from different thematic universes. GraviTrax Junior combines creative construction and the pleasure of play to delight the little ones! By playing with Junior products, children are perfectly