Are you speed-solving regular Rubik's Cubes with ease and looking for a more difficult challenge? Then get your hands on this cool new Rubik's Phantom Cube. This challenging 3x3 puzzle cube has all black thermochromic tiles that temporarily reveal their colors with the heat of your touch and then fade back to black. Try to speed solve it before it fully fades or just touch, reveal, spin, twist, and repeat that routine endlessly... forever. Good luck!