Not very good for watercoloring stamps
I purchased these and another set of colors of the same brand to use with the Art Impressions watercolor stamps. Upon trying them tonight, I quickly realized they don't work so well for watercolor stamping/painting. The package states they are water based dye ink. The colors do not spread very easily when water is applied and I suspect it has to do with these naming dye ink. These will be good for other art projects but not watercolor stamping. This brand of marker on the Art Impressions website has different packaging that clearly states watercolor, so I'm going to try those next.