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The Hyperspace Cube Zome Tool Kit allows you to experience the 4th dimension first hand! Simple instructions make child's play of the journey from zero to 4 dimensions, using that most familiar shape -- the cube. Build different "flat" cubes, regular cubes and amazing "shadows" from the 4th dimension! The Kit contains 74 parts: 16 white nodes, 12 short blue struts, 24 long blue struts, 2 short yellow struts, 8 medium yellow struts, 8 long yellow struts, and 4 medium red struts, plus detailed instructions. Ages: 6 years +

Tantrix Xtreme is a more fiendish alternative to the Discovery, mainly aimed at keen puzzlers or experienced Tantrix players. It contains eight Discovery-type loop puzzles with an extra twist: no colour clue is given for each level. Two new tricky pyramid puzzles are added that provide an even greater challenge. Your aim is to build loops of various shapes and sizes starting with just three tiles. Each new tile added gives you a different and more challenging puzzle.