12 x 12 x 4" White Deluxe Literature Mailers

These 12 x 12 x 4 inch white deluxe literature mailers are built from ECT-32-B single wall white corrugated board and feature a front locking tab closure that secures without tape, glue, or staples. Integrated side flaps reinforce the box walls, adding compressive strength that standard mailers without flaps cannot match.

The rigid corrugated construction and square footprint make these mailers a practical choice for e-commerce retailers shipping framed prints or photos, publishers distributing catalogs and periodicals, and promotional product companies fulfilling branded collateral. Any operation sending flat or low-profile items that require more protection than poly mailers or padded envelopes will benefit from the structured sidewalls.

Each mailer assembles tool-free in seconds, supporting fast pack rates in high-volume environments. The clean white exterior presents well for outbound customer shipments and retail distribution alike. Each bundle contains 50 mailers; order multiple bundles to access volume pricing.