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You can return it for free within 14 days. We will come to your place, return it for free, and you will get your money back.
Logic Game Recent Toys - Brainstring Original. The mystery of this puzzle is not only about how to loosen a "knot" of threads in the center, but also how all the threads can be rearranged - WITHOUT creating a knot! Four groups of threads in different colors, four threads per group, moving up, down, and around all six sides of a polycarbonate case. Beyond simply tying or untying a knot, what beautiful symmetries can you create? The Brainstring Original is not just a puzzle - it's a work of art.
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