This is a set of 6 pairs of baby socks. It includes socks of various designs and colors, making them convenient for changing. There is no size indication, so I'm not sure of the exact size. I've included a picture of the socks laid flat in the second image. The size selection of 13cm and 13.5cm is just a placeholder. The white socks with faces are slightly smaller. The others are all about the same size. Some of the socks have non-slip grips. These items have been stored at home. Thank you.