GraviTrax Junior - Extension Trax Harry Potter Record voice entries and apply

Record voice entries and apply funny effects to your voice

Peppa Party Time

or creative LEGO® building to this high-quality building toy

or played by themselves with a press of the button

you will discover that magic is all about science

GraviTrax Junior - Extension Trax Harry Potter Record voice entries and applyTake your GraviTrax Junior marble runs further with the Extension Trax set, designed to expand creativity and building fun for little engineers. With 33 extra pieces included, kids can build bigger and more exciting tracks using base plates, height stones, bridges, straights, slopes and turns. This set encourages hands on STEM learning as children explore motion, gravity and problem solving through play. Perfect for adding new layouts and longer runs,