GraviTrax Pro Extension Mixer Sport This super-sized push-powered dump truck

This super-sized push-powered dump truck allows you to be in control every step of the way

Both toys have free rolling wheels for plenty of push along fun

Let’s be a mermaid under the sea

Power the motor by pulling on the retractable cord

compatible and connect and pull apart perfectly every time – it’s been that way since 1958

GraviTrax Pro Extension Mixer Sport This super-sized push-powered dump truckMix up the marbles journey with the Mixer. Add some surprise to your tracks by sending up to three marbles into the Mixer and see which sides they exit from. Combine this accessory with the GraviTrax Pro Starter Set. This set includes 1x Mixer BaseThis STEM system [Science, Technology, Engineering and Maths] is an ideal one to teach kids about gravity, magnetism, kinetic energy and fun. Hit a snag? Freestyle with your own track design or use the tasks