This is a set of 3 adjustable C-Clamps. They are constructed of ductile and/or malleable iron frames; bright plated finish and ribbed to resist side strain, with machine ground anvils, cold-drawn steel screws with smoothly rolled threads, steel sliding-pin handles bright plated steel swivels.
This set includes one each, of 1, 2, and 3 inch maximum opening C-Clamps. The load capacities are 400, 600 and 800 lbs respectively.