Amazon sizing info was not correct.  This sock in a size "7 - 8" (which actually shows up as size "7 - 8 1/2" on my order history) fits a size 12 girls "Little Kid" shoe (age 4-5 years old).

Quality seems fairly good, we'll see how they last after some use and washings.

The plastic ties that pierce the socks to hold them onto the hangers actually damage the socks.  Hopefully those holes will not cause threads to unravel.

They seem fine, but could be priced lower.  Made in China.