I know you have to be very carful buying from Harbor Freight and much
of their stuff is pretty bad. I once had one of their quick squeeze
clamps crumble in my hand the first time I used it so I threw the
others out. However, I have to say I am very pleased with these hefty
little clamps at an incredible price.

I have a few each of the short ones (maybe 6 and 10 inch) and they are
working great.

http://www.harborfreight.com/hand-to...amp-96210.html