Heat Erasable Fabric Marking Pens

I love these pens so much that when I recently taught a class in FMQ, I gave each student one of these wonderful pens and told them where they can order more. These are a staple of my sewing room. They mark easily and clearly and disappear with the touch of a hot iron. Furthermore, they are priced so reasonably, that I am not afraid to order more.

Not sure what is different from these are regular ink pens.

I’ve used heat disappearing pens many times and am amazed on how well they work.