PaperPrincess

I also purchased them thru the website (Renae Hadden???). As glassnquilts mentions, they can be a bit stiff, especially if they are cold. I always use them on the take up roller. I can use the table that you lay your pantographs on to apply the clamp strip. I also cut one of the clamping strips into 1.5 to 2 inch pieces and sometimes use the short pieces instead of the long one. Because I'm applying the clamp on a table, it's easy to get the top of the backing on straight. The bottom, not so much. I have a hard time getting the clamp on without the table and keeping the backing even. I eventually removed the rod from the bottom leader and just pin that. Just using it on one of the leaders still saves me a bunch of time. I think Nancy's Notions carries them, so with a coupon or site wide sale you can get them a bit lower. If you use the search option above and search this site, you can find posts where folks have developed home grown versions using inexpensive materials from the hardware store.