The BrutusMonroe surface ink pads were specially formulated to work as a permanent ink as well as an ink that can be watercolored with. This revolutionary ink is also completely permanent when applied to glass, ceramic, and fabric (heat setting is suggested when using the inks on glass and ceramic). These inks are permanent once dry, can be used to watercolor, and are also alcohol marker safe! These inks take all the guess work out of which ink to use in which application on your project. These 1" cube inks come in various colors. Collect them all! Color Stargazer.