I have no idea how it got here - it was probably Slivken's, from long, long ago. It's plastic, and holds up to abuse remarkably well (there are some tiny pits in it from washing with knives and such, but nothing else). I simply had to have more.
I don't have them yet (I still need money for that, but I soon will have money for this!). Enter the Internet 0WnZ0r1N6 5k1llZ™- there are only two understandable portions on the bowl - "Shuang Ho" and "5008". About an hour later, I learned that "Shuang Ho" is also "Tar Hong" and 8"~20cm. Then I found the bowls.