12.5″ x 18″ Poly Bubble Mailers #6 Quantity: 5 Highlights 12.5″ x 18″ – Inside dimensions (usable space)Bubble Lined – Cushioning for your productSelf Seal Lip – Easily fold and seal packagePermanent Adhesive – Added security during transitLightweight – Helps with shipping costsDurable Exterior – Water and tear resistant Our Poly bubble Mailers are an excellent way to ship a wide variety of merchandise. They are lined with 3/16″ bubbles that provide a protective layer for your product. The exterior is designed with tough poly plastic that is tear resistant and water resistant to keep items untarnished until they reach their destination.