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Stretch film is a clear film with no adhesive, and it is used to wrap cartons on pallets and to hold items together tightly. The film is resin based, so the cost fluctuates with the price of oil. It may be only 3″ wide and applied using a hand held device, or it may be up to 20″ wide and applied by machine. The film may be cast or blown, and the thickness may vary from 40 gauge to 120 gauge. The products and shapes being wrapped determine the desired film and its thickness.