Lux Interlocking Versatile Building Blocks: 450 Piece Set

With Lux's patent-pending snap and lock hinge, builders are now freer than ever before to make structures which curve, bend, and move! Not only do the Lux squares make circles and spheres, but they model machines, biological organisms, mathematical relationships, and enable a user to construct whatever architecture they want. Put the creative power of nature in your hands!