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The Tritangle puzzle was conceived when the designer noticed that a certain slice angle through a trigonal dypyramid almost showed 5-way symmetry. After making adjustments to the shape, he was able to create true 5-way symmetry, which allows the shape-shifting geometry of this puzzle. The TriTangle puzzle turns on three axes, which can all turn in increments of 72 degrees when not blocked by one of the three large points. Every move on the TriTangle creates a new shape, and despite only having seven moving parts, the TriTangle can be tricky to solve. This beautiful puzzle is stable and turns very smoothly. It comes fully assembled and stickered. Have fun!