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SNAP CIRCUITS uses building pieces with snaps to assemble different electronic circuits on a simple rows-and-columns base grid that functions like the printed circuit board found in most electronic products. Each component is easily identifiable by a different color and functional purpose. SNAP CIRCUITS 3D M.E.G. (Magnetics-Electronics-Gears) Learn the basics of electricity, engineering, and circuitry with full color, curriculum-rich, easy to-follow instructions. Contains unique stabilizers for building amazing SNAP CIRCUITS® structures.