Our 12" x 18" 4 Mil anti-static plastic poly bags are for packaging heavy weight items and protect against ESD damage. These ESD bags are the most popular thickness for shipping or storing electrical components, parts, clothing and more. All 12x18 4 mil antistatic polybags are made from low density polyethylene and can be recycled. These 12" x 18" .004 pink anti static plastic bags feature impressive clarity, durability and make storage and organization simple for industrial, food service and medical industry applications. These plastic lay flat amine free 12 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.