Header Card Packaging serves as an information source. They are placed on top of poly bags. They are constructed from cardstock. The most appropriate thickness is 10pt. A header card of 10pt can accommodate bags of up to 2lbs. If you are weighing your item is greater than that, you can opt for a heavier cardstock. The reason to use cardstock is to give toughness and durability to the hanger cards. The header cards for retail packaging are made with care and precision as they are required to be part of an entire set of products. In addition, fold-over packaging labels assist in raising awareness for your product.