Cross your marble run down and over with the twisted flair of the “GraviTrax PRO Helix”.

Criss-cross, under and out! Join up to six tracks with the “GraviTrax PRO Helix”! As a marble enters the “Helix”, it drops down a level without changing direction. Up to six marbles can pass through this action-accessory at the same time! Combine the “Helix” with the “GraviTrax Pro Starter-Set” or any “Starter-Set” and take your track to a new level, chock-full of fun obstacles, twists and stunts. Explore the endless possibilities and 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 instructions, and 1 Helix (easily assembled).

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!