Originally Posted by fabric_fancy
you can search this forum for information on this pen. its been out for over a year now and their is a lot of controversy regarding this pen.
some say its ok to use and others say its not safe.
i have see many blog posts about this pen where people made samples and the markings never went away.
I have used these pens on several quilts and find that they work very well. I have had no problem removing them with a hot iron. I think this is the best marking tool I have ever used and I have used many.