The PRO Element Helix connects up to 6 routes and can be crossed by up to 6 balls at the same time. Challenge: Build your marble run so that the element Helix is driven by 6 balls from all sides at the same time GraviTrax is the flexibly expandable and interactive marble run for children aged 8 and over. This product must be combined with a starter kit and expands existing tracks GraviTrax PRO is the next level and offers completely new possibilities for even more complex marble runs, extra dimensions and more height. The included instructions and building plans make it easier to get started, then there are no limits to creativity - long-lasting fun with lots of action The GraviTrax track system can be extended indefinitely with extra track packs and add-on’s – each sold separately. Suitable for ages 8 years and up. THIS IS AN ADD ON PACK - A STARTER SET IS REQUIRED TO PLAY **All GraviTrax and GraviTrax Pro products are compatible**
