Great pen. Marks fabric well. Erases with heat. Can re=appear when exposed to cold temperatures'
Love these pens.
These pens are great for marking and then disappearing. A notion definitely required for quilting. Service as usual is great.
These pens are awesome for the backside of fabric or in the seam allowance, so that you don't have to worry about the lines coming back. I use them constantly, and the rollerball ones that Dinkydoo carries work the best.