Twist this speed cube into all kinds of crazy shapes, and then see if you can put it back into a cube in this shape manipulation puzzle. One of a selection of challenging brain teasers and puzzle toys for kids from Uwe Meffert. This fidget puzzle is the perfect adult puzzle gift, children’s puzzle gift, or cool gift for teens. Great brain games for the IQ tester, once you’ve solved it you can scramble it and test yourself again! Fine motor skills toys that pose a fun and engaging challenge.