The Poly Bubble Mailer #4 is a white and gray envelope made of durable polyethylene material. It features a self-seal and waterproof design, making it perfect for mailing and shipping items. With a spacious interior size of 9.5” x 13.75” and padded/bubble-lined lining, this envelope provides protection for your items during transit. Manufactured in the United States by the brand GOODDEAL, these Poly Bubble Mailers #4 are a reliable and practical choice for businesses and individuals needing to ship various items securely.