This is the backing paper from shipping labels, connected in a strip. Please see the second photo for the thickness. I'm not sure how many sheets there are, but the thickness is about 2.5cm. I'm selling outgrown children's clothes, women's & men's clothing, books, and other items I no longer use at home, as a way to declutter. Due to work and childcare, I may be slow to respond. Thank you for your understanding. ★ I check the items for sale as carefully as possible. Please refrain from purchasing if you are sensitive to minor imperfections or expect perfection, as these items are stored at home and managed by a private individual. ★ Please ask any questions you may have in the comments before purchasing. ★ Shipping will generally be via Mercari's cheapest shipping method. ★ No pets, and my family are non-smokers, so there's no concern about odors.