1.ldpe plastic bag. 2.Various size, printing, and thickness are available. 3.Low price high-quality in shanghai. 4.OEM ... all have more than 15 years experience.*mailing bag *Various size, printing, and thickness are available*Low price ... available, up to 8 colors.This product is in scale production ,the higher quantity, the lower price ... cost,---produce---settle acconts. Factory Mien express bag