PrettyLittleThing Faux Snake Ankle Boot, size 9

PrettyLittleThing faux snake ankle boot Excellent condition, no sign of weather other than bottom scuffs. I wore these twice. 4 inch heel Pointed toe Faux leather There is a number 7 on the inside of the boot but they are a size 9 (or fit like a 8.5). I am unsure what the 7 means.