... 3.Easy to open and easy to close Item: plastic mail bags 1.Most efficient and Eco-cost poly mailer is ... , Catalogues, Literature & booklet Magazines, Photos, Printings, Promotional items, Samples, Clothing & Soft goods, Direct mail orders and so on. UsageCourier.Express ... colours from clear to rainbow. 6. Packaging: Packed in poly bags, dispenser box, cartons etc. 7. Customized Design, size, packaging ...