Poly Mailers Shipping Envelopes Bags, 10 x 13 – inches, 100 Bags (Gree These light weight poly mailers self seal for easy and secure packing. Each Poly Mailer is 10″ x 13″ in size and is Green with grey privacy lining, providing a professional and private appearance. Self Sealing Poly Mailer Envelopes Green outer surface/Grey Lining Features: Payment All payments are processed through PayPal and give you; the buyer protection on your purchase. Shipping All items ship out as fast as possible from multiple warehouses around the country. Most items are delivered within 3 business days. Returns We offer simple and easy returns on almost all items within 30 days of delivery. Contact us for a return authorization and address to ship your item to.