This is a dress for a child aged 12-18 months, used for a birthday photo. The size is listed as 100cm because there is no option for under 100cm, but I think it will fit a child around 80cm. It was used once. There are some marks, but they should come out with washing and ironing. I don't know where I bought it. It has only been worn once, but it is a used item. Please understand that there may be small scratches.