The Souffle pens by Sakura are a great tool to add texture and dimension to any craft. When using the pen, it takes a couple of minutes for the ink to dry. Afterwards, the ink leaves a noticeable embossed path. The inks work best on slick surfaces, such as photos, or on dark cardstocks. The pens are great to outline stamping, to doodle, to accent chipboard pieces, write dates on photos. The only limitation of these pens are the pastel colors are not versatile.