Launch more marbles with the "GraviTrax Balls & Spinner" and up the odds on your races!Race up to 6 marbles at once with the "GraviTrax Balls & Spinner"! A quick turn sends the marbles down your amazing marble run in a race to the finish. Since all sets are open-ended, it's a snap to combine accessories like the "Spinner" with any "GraviTrax Starter-Set" to create unique action in your marble runs. Combine with the launcher (included in the "Starter-Set") to race up to 9 different tracks at once! Experience the power of gravity and educational fun today!What makes a great toy? GraviTrax checks all the boxes! It's a creative, modular, expandable track system that challenges children to use their imagination to design and build their own marble runs! Electronic-free, GraviTrax construction sets use STEM-friendly concepts while building critical thinking and problem-solving skills. Completely open-ended, every GraviTrax set has a boredom-busting variety of play options for hours of fascinating fun. Once the basics are mastered, simply add expansion sets and accessories to propel those metal marbles around the tricked-out track of your dreams!Comes complete with 1 Spinner, 6 metal marbles and instructions.Lasting durability for girls and boys ages 8 and up, it's the learning toy children (and savvy adults) return to over and over again!
