Ravensburger GraviTrax Power Extension Interaction – Marble Run, STEM, Building and Construction Toys for Kids Age 8 Years Up

• Gravitrax POWER Interaction is the electronic extension for the Ravensburger interactive for children from 8 years: With GraviTrax, children, teenagers and adults not only build simple to complex marble runs. They create imaginative and action-packed marble track worlds.
• Build new routes and create crazy trick shots, expand the marble run with new ideas, expansion sets to keep the ball rolling.
• Experiment with gravity to power your ball through twists, loops and turns in a race to the finish line – great building game for boys & girls. Fantastic Christmas gifts and birthday presents for children.
• GraviTrax is made with premium quality materials adhering to the highest UK and EU standards and regulations.
• Clear instructions included to start playing with this fun brain game within minutes. A GraviTrax Starter Set is required to use expansion packs & accessories. Other accessories sold separately. 11x AAA batteries required (not included).