Description
You have two discs; one is black, the other is white.Euh...no, both are white ! Eeuuhhh...no, black.
Rub one of them on your red pullover, it become red. Rub the other on a green silk, it become green...
Very impressive !
Rub one of them on your red pullover, it become red. Rub the other on a green silk, it become green...
Very impressive !
