The size is 26cm! I purchased these at ABC Mart and wore them every Saturday and Sunday for two months. There is no heel wear, noticeable stains, or scratches. These items have been in someone's possession, so please refrain from purchasing if you are overly concerned about their condition. Only those who understand are welcome to purchase. Returns and exchanges are not accepted. Please feel free to comment with any questions or if you would like additional photos. Thank you! m(_ _)m