Unlock a world of creativity and critical thinking with the GraviTrax Junior - My Planet Starter Set XXL from Ravensburger, part of an award-winning STEM educational toy system designed to challenge young minds. This marble-powered gravity and kinetic logic activity blends problem-solving, engineering, and hands-on learning into an exciting, screen-free experience. With progressive challenges, kids can build pathways for the marbles to travel through the world they build of gravity-powered layouts, refining their spatial reasoning, problem-solving skills, and strategic thinking along the way. Perfect for children ages 3-5, 4-6, 5-7, and up, this comprehensive kit includes 200 pieces with everything they need to build a world of the jungle, desert, ocean, and more. An excellent choice that encourages independent thinking, patience, and persistence. Fun and thrills are unlimited - as your child grows, so does GraviTrax - add expansion sets for even more intricate and complex layouts. With a trusted reputation in educational games, Ravensburger has sold over 50 million brain-challenging puzzles and games worldwide, making GraviTrax a top choice among parents, teachers, and homeschoolers alike. Whether as a birthday gift, STEM classroom activity, or family game night favorite, this fun and educational marble run will keep kids engaged while fostering real-world engineering skills. Recognized with MESH Accreditation, this product excels in supporting key skills and has earned very high ratings in Problem Solving and high ratings in Perseverance, Adaptation, and Cognition.