Set of 100cm and 80cm sizes. This design combines a T-shirt and a jumper skirt, so there's no worry about the straps falling off the shoulders. The fabric is thick and sturdy. While there are no noticeable stains or tears, please be aware that there is some pilling. I bought these new at Ito-Yokado about 6 years ago, and my daughters, who are 2 years apart, wore them for two seasons. The 80cm size has snap buttons on the shoulders. Because of the modest design, they were suitable even for formal occasions. If you don't mind used clothing, I would be happy if your daughters could wear these together in the coming season. #Girls #Sisters #2YearsApart #80and100 #JumperSkirt #OnePiece #MatchingOutfits #FormalWear Gender...Girls