Petra Manufacturing Company is a producer of textile, vinyl and silkscreen products. The company offers a variety of items, including promotional materials, such as duffel bags, shoulder bags, pizza bags, stadium cushions, banners, game cards, backpacks, satchels, checkbook covers, point-of-purchase displays, travel bags and toilet kits; packaging alternatives, such as tool kits, pouches, X-ray film holders, first aid kits, cosmetics, cassette holders, business card holders, photo sheaths, polyethylene bags and pressure sensitive envelopes; protective items, including aprons, menu covers, pocket secretary covers, tire covers, pocket protectors, shop ticket holders, insulated bags, computer cases, machine/appliance covers, travel bags, mattress covers, coin holders, notebooks, lumbar cushions, instrument bags, pouches and cases; and presentation tools, such as ring binders, report covers, presentation folders, sample cases, salesman kits, underarm portfolios, pad holders, posters, pocket secretaries, clipboards, spot ultraviolet coating and cassette holders. Petra Manufacturing Company is headquartered in Chicago.