-Ideal for Small Business -They eliminate the need for additional packaging materials, saving you significant time and transportation costs. -Self Seal & Strong Adhesive -Adhesive is sourced from all-season glue, ensuring strong adhesion throughout the year, preventing any tampering of your items during transportation. -Sturdy & Durable Construction -Made from new polyethylene material, with a thickness of 2.4 mil on a single side. The edges are designed with reinforced sealing, making them resistant to tears, and bursting. Furthermore, these packaging bags exhibit exceptional waterproof, ensuring the safe delivery of your goods even in fog or rain. -Optimal Privacy-Our thickened mailer poly bags come with a grey interior lining that provides extra privacy protection, preventing others from peeking into your packages. -Build a Lasting Good Impression - Colorful poly mailers that stand out in a good way.