The GraviTrax PRO Vertical Expansion Set offers 33 additional elements to reach new heights with your track. Create dynamic marble runs with walls,...
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Launch more marbles! With the spinner up to six balls can be started at once. Watch as the marbles are sent on a race through your tracks. This ext...
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⚠️ Unfortunately, we are unable to ship this product. It is currently available for in-store pickup and local delivery only. ⚠️ Explore hydraulics,...
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Jumpstart your study of mechanical physics by learning all about simple machines and how they're used to make complex tasks easier to do. Through 2...
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Enjoy gardening at your fingertips with a miniature desktop greenhouse and tiny gardening tools! All you add are soil, water, and your choice of se...
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Experience mesmerizing magic in slow-mo with the Trestle Tracks Builder Set! Each set features hollow stacking cubes and perfectly flat tracks with...
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Stack hollow cubes to magically propel stainless steel marbles down a track for a truly mesmerizing experience! Eighteen special tracks grow wider ...
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A truly mesmerizing marble-track experience!Each set is made up of hollow stacking cubes and a variety of perfectly flat tracks. The paths cut out ...
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The DIFFERENTIAL model kit is the mechanism without which you cannot turn a vehicle around. It demonstrates how the two drive wheels mounted on t...
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