How did I every sew without this Dritz Quilting Chalk Pen! Oh my gosh...I love it! Forget marking pens or chalk pencils...this thing rocks! I bought mine in the Chalk Cartridge Set (which also includes pink and blue chalk so you can see your markings on all materials) after seeing it on one of my fave blogs Some of a Kind. The pen style holder is perfect...no chalky hands and no sharpening! Love, love, love it! I'm gifting one of these to my sewing friend at work. You gotta try it...really.