Custom sales books. Our multipurpose forms are designed to be used for an invoice, statement, quote or estimate. The forms are 2-part, carbonless white/yellow. All pages are perforated and numbered. Retain a copy in the book or remove both copies. Each order contains 2 books, 100 sheets per book (50 duplicates). The forms are approximately 5-1/2 inches wide x 8-1/2 inches tall. Professionally produced with your company name and information imprint at the top of the form. All printing is black.