{"product_id":"envelopes-poly-mailer-15x20x4-expansion-poly-mailers-item-pm-278","title":"15 x 20 x 4 Poly Mailer with Peel \u0026 Seal - White 14lb","description":"\u003cp\u003eExperience the premium craftsmanship of our 15 x 20 x 4 Poly Mailer—a white 14lb mailing essential built for strength and versatility. Designed with a tough polyethylene exterior, this durable mailer resists tears, moisture, and the roughest handling during transit. Its spacious 15 x 20 x 4 dimensions provide ample room for bulky or irregularly shaped items, while the clean white finish delivers a professional and polished appearance. With our signature Peel \u0026amp; Seal closure, packaging becomes effortless—just insert, peel, and press for a secure hold. Whether you're shipping merchandise, documents, or promotional materials, trust Envelopes to deliver a solution that blends durability, style, and ease in one dependable package.\u003c\/p\u003e","brand":"BNC","offers":[{"title":"Default Title","offer_id":48189049700582,"sku":"PM-278","price":0.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/8927\/7926\/files\/pm-278_9e3d47b5-6e4e-4954-8562-9a956c3581d8.png?v=1786616905","url":"https:\/\/www.envelopes.com\/products\/envelopes-poly-mailer-15x20x4-expansion-poly-mailers-item-pm-278","provider":"Envelopes.com","version":"1.0","type":"link"}