Four views showing various stages of the extrusion of saran bubbles from a rolling machine at the Dow Chemical Company plant in Midland, Michigan. The employee visible in the photographs is unidentified. During production, saran film passed through a series of rollers, which deflated the bubbles and prepared the film for winding on rolls. Initially developed for the U.S. Army to wrap arms and equipment for transport during World War II, saran plastic was subsequently developed and marketed as Saran Wrap for household use.