Difficulty Level: Hard. Redefine traditional cuboid designs with this mirrored-finish marvel that morphs into a myriad of captivating forms. The uneven segments shift as you play; and with no colors to guide you, the Reflectron is a challenge of epic proportions! The highly difficult puzzle is solved when all six sides are even and squared off like a cube. Each twisty puzzle in the Inverse line is designed with a unique shape and solving mechanism. These puzzles also look great on a shelf when not in use - the cleverly designed hinged packaging functions as a display case for your Reflectron between bouts of puzzle play. The brightly colored packaging makes it a great gift – especially for teens!