These were used at the cheerleading dance class my daughter attended until last month. They were worn once a week for one hour, for a total of 5 times. There are no holes or fraying. There are some pilling and stains. Since ballet shoes cannot be washed with water, they have only been disinfected with alcohol. The size is 42, which is 26 cm. I usually wear a size 24.5 in sneakers. These are used items, so please refrain from purchasing if you are concerned about that.