I have (8) each of the 8", 12", ~16" (400mm) Bessey KliKlamps - 24 total. These are basically new; I just don't find them to be my first choice over all the other clamps I have.
$250, pickup in Fairfield County, CT or can probably fit in a large USPS Priority Mail box (you pay actual shipping).
Stock photo (mine look JUST like this!)