These are Grishko 4.5 XXXXX extra hard shank pointe shoes that have been colored black.
This is the equivalent of a woman's street shoe size 6 to 6 and 1/2. I wear a size 7 normally and could fit my foot in it but not wear these with toe pads or go on point in them.
As a disclaimer: it is dangerous to attempt to go on pointe if you have not had formal ballet training and if you have not been fitted by a professional for pointe shoes. These are intended for costume use only.
$15 firm