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

Gravitrax POWER Lever 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. 2x AAA batteries required (not included).