>Witeden Magic Cube
>New Mixup Cube
>WitEden 4*4*4 Mixup Cube(White,official version)
It is a nice puzzle but mechanics of the cube does not allow easy turning. Had to reassemble it three times in the first day due to popping. Now untight screws a little bit and lubed the cube. Still not good but at least I now can play with it. So far all other cubes from Witeden did show very good mechanics.