Stable Bases - Marble Genius Marble Run Accessory Add-On Set (4 pcs.)

The original Marble Genius set was always falling over because there were not enough bases. An adult had to hold put the structure. This set lets two children build together.

I ordered this add-on for my son. He was very excited to see that his marble run has extra "things"(as he calls them) for his marble track. They were exactly what was described for the product, and he loves them. They are very sturdy, can be cleaned easily, and fit with no problems.

Justing adding the set of marble run to expand the size. Solid

Much sturdier than original pieces and holds many times more marbles in the catcher!

My son loves that the new bases are bigger and sturdier.