Consulting is done on a fee basis and consists of packaging sourcing, equipment sourcing, product/material compatibility studies, shelf life tests and other packaging related items. DPI also supplies corner-boards and slip sheets for manufacturers who use them to protect their products during transportation. Stock PET packaging is used by companies packing bakery items, confectionary, nuts, produce and many other food service items. These products are sold to processors, restaurant chains as well as national grocery chains.