GraviTrax PRO Extension — Helix

Guide marbles down a controlled spiral: when a marble enters the Helix it moves down to a lower level without changing direction. Up to six marbles can pass through this Action-Stone at the same time. Use the Helix to build new routes, craft trick shots, and expand your marble run with fresh ideas. Compatible with all GraviTrax & GraviTrax PRO sets and accessories. A GraviTrax Starter Set is required to use expansion packs and accessories. No batteries required. Recommended for ages 8 and up.