It's called a skip stitch blade. check it out at http://www.skipstitch.com/products.htm
Also, check out a You Tube video on using this blade. It's not done quite the way we do it... we put holes 3/8" - 1/2" from the edge. Also, place the clear straight edge over the edge of the fleece, so that you can use the measurements on the straight edge as your guide. (Maybe someday we'll create a video!)
