So, that is the actual packaging. I do not know where I got the idea that this was a set, although the site specified that it did 10,11...20mm, but no, you just have an oversized 20mm socket that also does 10mm.
This never would have fit on the nut on my exhaust manifold. We will see if I ever have use for it. Nobody else was impressed, so I doubt that anyone else wasted their money.
How about this?
$25.19:
Sears: Online department store featuring appliances, tools, fitness equipment and more
That is the best that I can find.