Our 18" x 18" 1 Mil flat poly bags offer lightweight protection for temporary storage of food, parts and hardware. All 18x18 1mil polybags are made from low density polyethylene and can be recycled. Our flat open top 18" x 18" .001 plastic bags feature impressive clarity and make storage and organization simple for industrial, food service and medical industry applications. These light weight plastic lay flat 18 inch by 18 inch bags can be sealed by using twist ties, bag tape or by heat sealing, and they meet FDA requirements for use in food packaging and storage applications.