12 x 12 x 4" Kraft Deluxe Literature Mailers

These 12 x 12 x 4 inch kraft literature mailers are built from ECT-32-B corrugated board, forming a rigid enclosure that protects contents on all sides. The tab-locking tuck closure with integrated side flaps secures the box without tape, glue, or staples, eliminating consumables and cutting pack time on high-volume lines.

The self-locking format suits fulfillment centers, print distributors, corporate mail rooms, and retail shipping operations. The square footprint with a 4" depth handles documents, catalogs, bound publications, vinyl records, framed prints, and lightweight boxed goods without excess void space.

Constructed from kraft corrugated for a clean, professional exterior, each mailer weighs approximately 0.59 lbs. Sold in bundles of 50 and parcel-friendly for routine replenishment alongside standard outbound orders.