Very poorly constructed.  Flimsy sheet metal.  Catches on the underside of the jaws do not engage securely into the holes in the frame.  Adjusting screws were poorly aligned so that the first attachment of the moveable jaw left it crooked and required some disassembly and adjusting on my part.  Reasonably sturdy with all 4 legs on a flat floor, but I suspect it will prove wobbly on an uneven surface.  Definitely not for the serious DIYer who works with heavier items.  Next time I would look for something much sturdier.  Made in China.