wheel that spins in both directions!
wheel spinning in both directions i.e. clockwise and anti-clockwise
You will see the wheel rotating in leftward, if you concentrate on the outer rim .. but, if you put your eyes solely on center cog, you'll notice the rotating wheel change it's spinning direction, i.e. it's now rotating in rightwards
Also Watch :
Spinning Dancer Illusion, where a dancing woman starts off spinning in one direction and ends up spinning in the opposite direction.