Four sets of brand new socks. The two sets on the left are 10-15 cm. The crocodile socks are 10-13 cm. I received these as a gift, so I don't know where they were purchased. The striped ones on the right are from the Korean brand Monbebe. These are for babies, 0-18 months. I'm not sure of the exact size, but they can be used up to 18 months, so you can use them for a long time. I bought the Monbebe socks in a box, so there are no tags, but the non-slip rubber on the bottom of the socks says "monbebe" and they are brand new.