Transfer your marble's momentum across your track's crevasse with the “GraviTrax Zipline”!

Watch the “GraviTrax Zipline” overcome long distances and varying elevations with spectacular gliding action! Add the “Zipline” to your marble run and watch as your marble triggers the suspended marble to race down the line and whack the marble across the gap and send it on its way. Explore Newton's Laws of Motion while having a blast! It's a snap to combine this accessory with any “GraviTrax Starter-Set” to 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 Zipline (easily assembled), 1 long track, 2 medium tracks, 3 short tracks 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!