The QiYi O2 Cube Standard Version presents a single seamless block whose only moving parts are the coloured discs on its six faces. Each disc slides up, down, left or right to swap places with its neighbours, riding an internal 3x3 style mechanism underneath. It measures 53mm and weighs 82g. Unlike the Spinner edition of the same puzzle, the disc here does not rotate, so this version works purely as a simple twisty puzzle.