Product Description: This is a set of 9 newborn baby undershirts. The size is 50cm, and they are convenient to use as innerwear from after discharge from the hospital to around 2 months old. The green undershirt was worn about 2-3 times, but the others are unused. All items have been cleaned and sterilized. They have been stored with care, so I believe you will be able to use them comfortably.