I found a u-tube demo showing a lady using them to sew the binding on by machine. Somehow she nestled a "ridge" on the wonder clip in the seam and then used a zipper foot to sew right alongside the clip on the unsewn side and the threads did not show on the other side as they were in the ditch! I was so excited and bought 2 fifty packs with my coupons at Joanns and now I can't find that demo again on u-tube - there are alot more on there but that one really was a good demo. I have used mine to hand sew on a tiny quilt and they worked great - I love them! Have also given them as presents to my quilting friends. Now I've just got to get my WIP's finished to that stage to try it on the machine!