12 x 12 x 1 1/4" White Literature Mailers

These 12 x 12 x 1 1/4 inch white literature mailers are built from ECT-32-B single wall corrugated board, producing a rigid, flat-profile shipper that protects documents, catalogs, artwork, and printed materials through the full handling and transit cycle. The tab-lock closure inserts without tape or additional supplies, delivering a consistent, repeatable seal on every unit.

The clean white exterior supports professional presentation in outbound e-commerce fulfillment, publishing distribution, print media shipping, and B2B document workflows. Each mailer ships flat to minimize storage footprint and assembles quickly at the packing station without tooling or extra materials — practical for both low-volume runs and sustained high-throughput environments.

Sold in bundles of 50, these mailers are parcel-friendly and arrive ready to deploy. The interior footprint accommodates standard square formats including record sleeves, presentation folders, and architectural or fine-art prints up to that dimension.