Size: ND, Welcome to the Sonsage store. We are committed to developing all kinds of comfortable and cute shoes for babies. These baby booties are made of soft and comfortable materials, without any ingredients that can harm the baby's skin. Parents can feel confident in their choice. The shoes are suitable for babies aged 3 to 18 months. We provide general age recommendations for each size, but every child is unique! Please measure your baby's foot for the best possible fit. If for any reason you are not satisfied or have any issues, please contact us. The package includes 1 pair of shoes. Note: The recommended age is for reference only. Please measure your baby's foot length to choose the correct size. We strive to provide the highest level of support before, during, and after your purchase. If you have any questions or comments, please do not hesitate to contact us, we would love to hear from you!