13 x 13 x 3" Kraft Literature Mailers

These 13 x 13 x 3 inch kraft literature mailers are built from ECT-32-B single wall corrugated board and feature a self-locking closure that assembles without tape, glue, or staples. The square footprint and shallow 3" depth make them a purpose-built rigid enclosure for catalogs, brochures, flat documents, and printed materials that need more structural protection than a poly or padded mailer provides.

The combination of a rigid corrugated shell and tool-free assembly makes these mailers a practical fit for e-commerce fulfillment centers, direct mail operations, print distributors, and retail replenishment programs. The no-adhesive closure eliminates the need for tape dispensers or sealing equipment at the packing station, supporting faster throughput on high-volume lines.

Each mailer weighs approximately 0.52 lbs and ships via parcel carrier. Bundles contain 50 mailers, providing a consistent pack count that simplifies stock tracking and per-unit cost calculations.