Discover our high-quality poly mailers designed for secure and efficient shipping, delivery packages, and mailing ad packaging. These durable express envelope bags feature a self-adhesive seal for easy and fast closure. Crafted from poly material, they provide high privacy, waterproof and dustproof safety, and moisture-resistant protection during transit.

Key Product Features

• Self-adhesive seal for secure and fast closure
• Waterproof, dustproof, and moisture-resistant protection
• High privacy and safety for shipping apparel and items
• Lightweight, flexible, and tear-resistant construction
• Designed for delivery packages and mailing ad packaging

Technical Specifications

Product Name: Poly Material Custom Mailing Bags
Size: 10x13 Inch (Customized Size available)
Material: Poly
Sealing & Handle: Self-adhesive Seal
Application: Mailing Ad Packaging
Usage: Delivery Package
Place of Origin: Guangdong, China

Common Use Cases

These express envelope bags are ideal for e-commerce shipping, apparel delivery, mailing ad packaging, and secure document transport. Their lightweight and tear-resistant design ensures items stay safe and private from sender to destination.

Frequently Asked Questions

Q: What is the size of these poly mailers?
A: These mailers measure 10x13 inches, with custom sizes also supported.

Q: How do you seal the envelope bags?
A: They feature a convenient self-adhesive seal for quick and secure closure.

Q: Are these mailers waterproof?
A: Yes, they are waterproof, dustproof, and moisture-resistant to protect contents.

Q: What industrial application are they used for?
A: They are commonly used for apparel, delivery packages, and mailing ad packaging.