Fosmon 7.5" x10.5" Self-Seal Tear-Proof Polyethylene Mailers offer a reliable and durable solution for secure and cost-efficient shipping. Designed to protect your items during transit, these high-quality polyethylene mailers are water, tear, and puncture resistant, ensuring the safety of the contents within. Each mailer features a high-strength adhesive closure that is both water and dirt resistant, providing a dependable seal. The silver inner layer enhances confidentiality by obscuring the contents of your packages, making it perfect for sensitive shipments. These self-sealing poly mailers are ideal for shipping a wide variety of non-fragile items, offering both durability and convenience. These lightweight poly mailers are designed to save on postage costs while offering the strength necessary for over-stuffing, thanks to their high-strength seams. The surface is compatible with ink, stamps, and labels, making labeling and branding simple and efficient. Suitable for use with all major carriers, these mailers provide a versatile and secure option for your shipping needs. Perfect for businesses and individuals looking to ship items efficiently, these 7.5" x10.5" mailers ensure that your packages arrive in excellent condition, protected from the elements, and are easy to handle. Package contents: 300-Pack Self-Seal Polyethylene Mailers (7.5 x10.5 Inch)