As regular markers considered, these things are really good.
But I'd not need to be called washable. Because really remove any residues from the skin and from the clothing can be perhaps one or two colors of the lighter variety. Really washable / washable these pins are not in any case! If you use an additional stain remover / Spray with clothes, am back.
Therefore 2 star deduction !!
So continue to watch the color really comes to paper. :-)