Thank you for viewing. This item is unused. I bought it several years ago, but I don't remember exactly when. A pack of 50 sets of back carbon copy receipts, perfect for accounting and administrative documents. - Brand: KOKUYO - Product Name: Shin-113N - Quantity: 50 sets - Features: Back carbon copy - Use: For accounting and administrative documents For those who understand that it has been stored for a long time. I am sorry, but I am not accepting combined purchases. Thank you very much. :)