Although the size isn't listed, I believe they are around 7-9 cm. I used these about 3 times when my child was 1-2 months old. I used the ones in images ② and ③. I'll include two sets of mittens, which I bought to match the socks, as a bonus. The other 8 pairs were gifts and are all unused. I will compress them for shipping. I have included photos of the items' condition as much as possible. No claims or returns, please. If you have any questions before purchasing, please ask. - Colors: Yellow, White, Gray, Pink, Beige, Green - Design: Chick, Cow characters - Material: Knit - Size: Baby - Quantity: Set of 6 pairs Thank you for looking.