Features 10 Pack: Sales Book Order Receipt Invoice Carbonless Duplicate 2 Parts paper white & yellow 50 Sets in each book. Size: 3.5″ X 5.5″ Online Best Service 10 Pack Lot Sales Book Order Receipt Invoice Carbonless Copy Description Features: * 10 Pack: Sales Book Order Receipt Invoice * Carbonless Duplicate * 2 Parts paper white & yellow * 50 Sets in each book. Size: 3.5″ X 5.5″ Online Best Service items includes A 90 Days Warranty. The warranty will be voided if purchased from a re-sellers or any company other than Online Best Service0 About Us Since our founding, we have taken special pride and pleasure in being able to participate in the exciting world of eCommerce and providing products of the highest quality. It is with this philosophy that we want to run our store and provide exceptional value to you as our customer. Payment We accept payment by PayPal. Tracking Your Order: Once your order ships a tracking number will be sent to you via the email address used to place your order. Problem with My Order: For concerns regarding your order, please contact us here. Shipping All of our shipments are free for you our customer unless you decide to upgrade your shipping for a small fee. At this time we only ship to the continental 48 states of the United States. We do not ship to PO/APO boxes. Returns Returns can only be requested within 30 days of the product shipment date. We offer free return shipping for all of our items. Returned items must be in their original packaging with everything included. Please contact us here (link) for help or assistance in processing a return.