50 sets of horizontal no-carbon invoices, made by KOKUYO. - Brand: KOKUYO - Product Name: Invoice U-322N - Number of sheets: 50 sets - Type: Horizontal no-carbon This is a set of 4 new books. 3 of the books have numbers written on the cover with a ballpoint pen. Please check the photos. Please refrain from purchasing if you are sensitive to items stored at home.