These professional-grade mailing bags are designed for secure and reliable shipping of your valuable items. Made with durable, waterproof material, these 9 x 12 postal bags feature a strong self-adhesive seal that ensures your contents remain protected throughout transit. The tear-proof construction provides additional security, while the sleek grey colour maintains a professional appearance. Perfect for e-commerce businesses, office use, or personal shipping needs, these versatile mailers can accommodate a wide range of items from documents to soft goods. The self-sealing adhesive strip creates a tamper-evident closure, eliminating the need for additional tape or sealing materials. These lightweight yet sturdy bags help streamline your shipping process while maintaining the confidentiality and integrity of your shipments. Each bag offers consistent quality and reliable performance for all your mailing requirements.