This is the three-dimensional spherical labyrinth that challenges the limits of your manual dexterity and spatial understanding as you maneuver a 5/8″ wooden marble through its entire course. The Superplexus is a complex network of chicanes, multi-planar hairpin turns, spirals, and staircases–even a vortex. Hand made from 3- and 6-ply Finnish birch that form the track, over 400 hours are involved in its construction. The labyrinth is set inside a 36″ diameter acrylic sphere affixed to a Jatoba base using a stainless steel gimbaled mount that allows you to tilt the sphere in any direction to guide the marble. The entire track laid out on a straight line is 31′ longer than a football field. In addition to the track, the ball must travel on a 1/16″ diameter stainless steel wire pathway at eight points along the journey. A series of directional arrows indicate the course to follow, and successful completion requires a minimum of 425 turns (plane changes) of the sphere–without letting the marble fall off the track.