These are the most amazing pens I've encountered. I like to draw in pen, namely because it looks sharper, and erasable pens usually suck. BUT these erase with friction (both in gel and marker pen style), leaving NO trace, and no eraser shavings. It erases better than pencils and doesn't smudge during use. I'm smitten.
I designed this for my Christmas Party Class. The Stampin' Up! "Cable Knit Dynamic Impressions Embossing Folder" makes a heavy rich background. A quick wash of Soft Suede color with the Aqua Painter and real red marker pen accents make this a fast and EX hit.