This is a set of 60-size combination underwear. All of them have been well-used, so there is a feeling of use. How about them for spares or stock? By the way, all of them were easy to use, but my favorite is the one from "a store that makes baby products in Japan." The Velcro is easy to fasten with one touch, and the number of snap buttons at the crotch is fewer than other combination underwear, only two, but I liked the well-designed construction that kept the baby's tummy and thighs from coming undone. The fabric is also sturdy, so there's no issue of the fabric stretching and making it difficult to fasten and unfasten the snap buttons... it was a good underwear that was easy to use without feeling any minor stress. However, due to the nature of Velcro, lint and other debris will inevitably collect on the Velcro. There is no problem with use, but please be aware of this. I had put name stickers on the washing instructions tag, so I will remove them before shipping. I am also selling some other newborn baby items, items for preparing for childbirth, and items for hospital stays.