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    Colorful Kaleidocycle-The ring model is made of tetrahedron,which can like smoke rings flipping repeatedly.The tetrahedron is made of four isosceles triangles.Every isosceles triangle has a common edge.Because of this,the ring can flip and without breaking.
    Infinite Cycle and Infinite Non-circulation-You will see the same pattern after flipping four times,but the difference is what you think.the pattern is good for thinking.The color and patterns will help you relax yourself.Flipping kaleidocycle can improve finger flexibility,extend your thinking skill and relax your hand and your eyes.