plastic mail bags 1.Material: Co-extrusion ldpe 2.With ... Easy to open and easy to close Item: plastic mail bags 1.Most efficient and Eco-cost poly mailer is ... made of opaque and new plastic film, 100% recyclable.2.Durability, moisture resistant, ... , Promotional items, Samples, Clothing & Soft goods, Direct mail orders and so on. UsageCourier.Express and various other packaging ...