This is a 4-piece set consisting of a dress and a T-shirt. The size is 130, and the items are either unused or have been worn a few times. I bought these for my daughter, but she didn't like them, so she hardly wore them and they ended up not being used. It's a shame to throw them away, so I'm offering them to someone who can use them. The dress can be worn on its own and is perfect for hot summers. Thank you.