Coupons are promotional and are applied to the outside of the product for redemption at the checkout. They often are flat with the barcode and expiration information on the backside. Others coupons that require more information or promote more than one produce can be folded so as not to take up so much room on the product. Still other coupons are printed which can be placed inside the product for redemption after purchase. Commons uses are on food products and consumable goods. Contact us Toll Free 866-552-2357 or 408-842-0376