These 4 x 2 x 2 inch kraft corrugated mailers are built from ECT-32-B single wall corrugated board, delivering crush-resistant protection in a compact format that weighs approximately 0.06 lbs. The one-piece construction folds into a double walled enclosure on the front and sides — no tape, glue, or staples required.

The fast, tool-free assembly makes these mailers a practical choice for e-commerce fulfillment centers, retail distribution operations, and warehouse pick-and-pack lines where throughput is a priority. The compact interior is well suited for small, dense, or elongated products such as cosmetics, hardware, vials, cartridges, and similar items.

Each mailer ships and stores flat, minimizing floor space requirements between uses. Bundles contain 50 mailers and are parcel-friendly, supporting easy replenishment for operations of any scale.