This is a darling pair of infant girl's dressy shoes, size 2 (3-6 Months). You can measure size from heel to toe. If it's about 4", these will work. The box says extra toe room for growth has been added. They are vintage - do not look like they have ever been out of the box, but no guarantees, because a 3 month old won't wear them out. Included is a pair of white socks with lace cuff, also probably never worn. There is a little rust spot on the socks, and on the back of one shoe due to prolonged storage. See pictures as part of my description. Too cute. Thanks for looking!