This was given to me on Mercari. No box or instruction manual. The baby carrier I bought before giving birth was too big, so I used this for about 2 months, from before my baby could hold their head up until after they could. There were already some pilling in places, but I think it's in good condition. It was easy to put on and take off, and very convenient! If there's anything you're concerned about, please feel free to comment and I'll upload more photos.