So you would like to build your own amazing marble tracks? MagTrax is a modular set of magnetic tracks that let you build amazing tracks on any wall. It has 25+ track modules for you to get started. MagTrax modules work on metallic surfaces. You can use it to build a lift gate, spider web, light switcher, and other clever tracks.
More gadgets like this: here
ALl kits come with small metal plates and wall putty, so you can build your tracks without a giant metallic surface.
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