|We have had this 22 piece container of Spring Clamps for several years, but it was not until I had to rip our the hem of a slippery polyester lining fabric for my husbands reversible cape, that I thought to use one of the larger clamps for a "third hand" to help with the ripping process. I keep one of the clamps handy all the time now, and recently have expanded my use of the clamps. I do not remember the cost, but we found them in one of the impulse/small item bins at Home Depot. I am sure many hardware stores have something similar. These are handy gadgets with all sorts of uses. Click on the link above to see how I have been using the clamps.