. This type of pen erases quickly and easily when heat is applied to it. Watch how easy the FriXion pen is to erase with an iron then write on the fabric to make new lines. The final set of stitches is sewn perpendicular to the second set. Marking lines makes it easier to keep the backstitch straight. Use the iron to erase the lines made by the Frixion pen. Looking for some print resources to add to your sewing library to help with mending? 