These 50 lb heavy duty "Pure Ice" plastic ice bags are pre-printed. The large opening makes packaging ice cubes easy. These 50-pound ice bags with twist ties are 3 mil thick, measure 18" wide and 36" long, and are manufactured with 100% virgin resins. Meets USDA/FDA requirements for food contact. EVA and a freezer-grade resin have been added to these ice bags to increase their already incredible strength, puncture resistance. The additives reduce brittleness at ice-cold temperatures. Each heavy-duty ice bag is pre-printed with an image of a polar bear standing on the ice with the text "Pure Ice".