The Ultimate is the largest Quadrilla marble run set. It comes with two spiraling funnels, 12 curved rails, and 10 power - boosting accelerators, which will surely inspire you to design the most amazing marble run. Ideal for STEM learning!

Using this Quadrilla marble run set is super easy. First, find a flat surface to set up your marble run. Connect the 12 curved rails in different ways to create your unique track. Then, place the two spiraling funnels at strategic points for added excitement. Put the marbles at the start of the track and watch them zip through the rails and funnels, getting a boost from the 10 accelerators. When you're done, carefully take it apart and store the pieces in a safe place. Keep the set away from water and don't use it roughly to make it last longer. Have fun building and playing!