PrivacyEquipped with strong adhesive, definitely quite durable and the sticky tape adheres very well. Our tamper evident mailing bags will help protect your business from theft and lost packages. The mailing bags used convenient opaque materials to protect your privacy with a professional appearance. Tear ResistantMade with the highest quality materials, our mailing envelopes are designed to be incredibly durable to resist punctures, tears and moisture. WaterproofPoly envelopes are self-sealing for easy packing with a tamper-proof and super secure closure. Pressure-sensitive adhesive provides a durable, high-strength closure that resists water and dirt. Portable DesignCompared to most poly envelopes, our bags come with with a handle, making it easy for you and your customer to grab and carry. Thank you Mail Bag Envelopes Tote p> 1.Our Poly Mailers mailer envelope bags with convenient handle allow you to carry all your mailings in hand, without the hassle of an extra bag or box. 2.Waterproof, so no need for extra packaging. 3.Non-Transparent - Their opaque solid color hides the valuables you have inside. 4. With a self-sealing, peel-and-stick adhesive, keep contents secure and tamper-proof. 5.Our mailing envelopes are designed to be incredibly lightweight and durable to resist punctures, tears, and tears. humidity. This can save your company's shipping cost and protect your products from lost in transit. 6.Made of high quality tear-proof poly material, the shipping bag has a good tension, thus protecting your product from tearing during transportation. Specification: Size: 25.5cm*33+6+5cm Color: White Material: plastic Package includes 100 x poly mailers mailer bag