A5 80 Number Sheets Invoice Book. Comes with 80 sheets, numbered from 1 80 and blue carbon copy paper to transfer to duplicate. All sheets are ruled with invoice layout for writing a description, price, vat and total. Perforated at the binding edge for easy individual sheet tear out, leaving the copied duplicate behind as a record, the duplicate can also be torn out if required. Perfect bound into booklet format for keeping all information secure. Has a strong board front and back cover for protection and stability on any surface.