Can and will bend under heavy loads, so as other reviewers have noted, use a heavier duty pry bar for that. This shouldn't be your only one, anyway. The price is nuts, so I'll keep buying if I destroy one. Would like the teardrop-shaped nail-puller sharper. The lower nail-puller dulls easily.

On sale for $2.79 (OCT 2011), regular price $2.99.

The steel is 1/4" thick.
1.75" wide at the widest point on each end, 1.25" in the middle.

It says "Carbon steel, powder coated, lifetime warranty" on the label.
UPC 792363025294

For $3, it's worth it if you need a pry bar (wonder bar).
It's not for extreme heavy duty work, but should get you through most jobs.
If it breaks/bends, go replace it under their lifetime warranty.

It does the job well however I had to grind the paint out of the nail pulling areas with a dremel to make it work better.

I used this tool to demo some cabinets in my kitchen. An outstsanding buy for this purpose. But because of the thinner steel that this unit is made out of, I would not use it for extremely heavy duty pry bar work.