I'm not sure where we found out about Frixion pens but we are so glad we did. These are awesome for drawing seam lines on fabric.These pens weren't originally made for fabric and in fact, I don't think Pilot even mentions using them on fabric, but they work brilliantly and we use them pretty much exclusively for marking the lines on our fabric.The video shows how … [Read more...] about Frixion Pen Review: Fabric Pens for Quilters