Rediform-Blueline 5L320S 5-1/2" X 7-7/8" Carbonless Duplicate Style Sales Book Sales book Designed for the small business user Carbonized coating on the back of the pages transfers image to the copy without having to use a separate carbon sheet Wraparound stop card prevents write through Two hole punched to fit post binders Each form is numbered and has ruled spaces for seller's name, date, buyer, buyer's address and list of 15 numbered items 5-1/2" x 7-7/8" 50 sets per book. This Product is manufactured in Canada.