Half Size Duplicate Receipt Book Numbered Cash 1 - 100 Pages Pad Carbon Invoice Duplicate Book, size 127mm x 103mm. Comes with 100 sheets of 70gsm White Writing paper, numbered from 1  100 and includes a blue carbon copy paper to transfer to duplicate. All sheets are ruled and perforated at the binding edge for easy individual sheet tear out if needed, leaving the copied duplicate behind as a record. The duplicate can also be torn out if required. Tape bound into booklet format for keeping all information secure. Has a strong board front and back cover for protection and stability on any surface. Great to use for quotations, invoices, job sheets or anything where you need to keep an important record.