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Contact SupplierMailer boxes are sturdy, self-locking corrugated packaging solutions designed for secure shipping and an impressive unboxing experience. Commonly used in e-commerce, subscription services, and retail packaging, these boxes feature a foldable design with interlocking flaps that eliminate the need for external tape or adhesives.
Key Features:
Made from high-quality corrugated board (3-ply or 5-ply)
Self-locking structure with tuck-in flaps for secure closure
Customizable sizes, shapes, and high-quality printing for branding
Strong yet lightweight—ideal for postal and courier shipping
Eco-friendly, recyclable, and easy to assemble




