Long Poly Mailers are lightweight, flexible mailers designed for shipping narrow or extended items that do not fit standard poly mailer sizes. Made from 2.5 mil polyethylene, these mailers help protect contents from water, dirt, punctures, and everyday handling during transit. A self-seal closure on one end makes packing quick and secure, making them a practical choice for wallpaper, fabric, posters, parts, soft goods, and other long lightweight products.