I purchased this from Classe. Size is M (23-23.5cm). I think someone who wears 24cm shoes could also wear these. They have a platform sole, adding 9cm to your height. I've only worn them once and then stored them away. I felt they were a bit too big, so I'm selling them. I will ship them in the original box, wrapped in a paper bag. Retail price: 8140 yen Instant purchase is OK.