Magnetic Levitation Express

A toy train which run by the help of magnetic field without touching the track how its all the magnetic field train have North magnet on the left and South at the Right and the track also have the same and the track magnetic field is 4cm so it does not spread form the track
My opinion about this product ?
I like this toy so much because of the magnetic function it run without cells or battery only with magnetic field . No waste of money There is a video on its working .