Ravensburger GraviTrax Twirl – Add On Extension Accessory Marble Run and Construction Toy For Kids Age 8 Years Up – STEM
Features:
- Innovative – The GraviTrax interactive track system allows you to design and build your own race tracks and experiment with engineering, gravity, magnetism, and kinetics to propel your ball to the finish.
- Infinitely Expandable – Gravitrax in fully expandable with a large range of expansion pack and accessories! An amazing building toy!
- Develops critical skills – Playing and building with GraviTrax builds spatial reasoning and planning skills, and provides a great stealth learning experience.
- Clear instructions – Comes with clear instructions so that you can start construction and start playing with this fun brain game within minutes. Starter Set Required.
Suitable for ages 8 & up
