These pajamas are 110cm and made of comfortable quilted fabric. There's a place to replace the elastic (see photo 8). There are faint stains (see photo 9). I didn't use them every day because I had other pajamas, but due to the nature of the material, they tend to pill easily, and there are small pills on the light blue and gray fabric (see photo 10). As shown in photo 11, there are several spots that look like they have black marker on them, in addition to the one in the photo. I'm not sure if it's marker or if it's due to a change in the fabric, as there are several spots... I only noticed it when listing the item, and it's not noticeable unless you look closely. Would these be suitable for a spare set? I will use either Yu-Yu Mercari or Raku-Raku Mercari delivery service.