Are your kiddos always saying they are bored? Check out the X-Cube, the shape shifting puzzle that has 125,486,757,308,950,508,983,252,156,416,000,000 permutations. That is over 2 quadrillion times more possible permutations than the original 3x3x3. This puzzle gives your children a ton of puzzle combinations to work through when they have time on their hands!