Introduce your kiddo to the world of GraviTrax with our “Junior Starter-Set XXL — My Planet” and watch them discover their inner engineer!

Now younger kids can enjoy the thrill of watching their ball roll through a fun marble maze they made themselves! “GraviTrax Junior” is an interactive track system for children ages 3 to 7, with pieces sized for little hands. Easy to assemble with tons of possible track layouts for hours of repeat play! Kids create themed worlds that motivate creative thinking and problem solving. A variety of expansion sets adds to their marble run fun, and it's sustainably made! Makes a great gift!

With GraviTrax Junior, building and playing fun is always on track! This creative, expandable system is especially designed for younger children as it challenges them to use their imagination to build their own marble runs! STEM-friendly concepts build critical thinking and problem-solving skills. Completely open-ended, this XXL Starter-Set contains everything needed to build a variety of tracks. Expansion sets are easily added for even bigger fun! With many parts made of wood bioplastic, you can feel good about giving your favorite child a sustainable toy that will provide years of educational play! Ages 3–7.

Comes complete with instructions, 10 baseplates, 10 marbles, 100 height tiles, 2 bridges, 4 straights, 4 slopes, 14 big curves, 4 small curves, 1 starter 2-part, 1 finish, 1 hammer, 1 seesaw, 16 3D decorative elements, 4 cardboard animals, 8 base stones, 8 decoration caps.