These 4-3/8" x 4-3/8" x 2" white corrugated mailers are built from ECT-32-B corrugated board, offering a crush-resistant structure with a clean white exterior suited for both branded and unbranded outbound shipments.

The one-piece self-locking design assembles in seconds without tape, glue, or staples, making it practical for high-volume e-commerce fulfillment, direct mail operations, retail distribution, and subscription box programs handling small, compact products. When folded, the construction creates double-wall panels along the front and sides for added protection during transit.

At under 0.10 lbs per unit, the lightweight build helps control dimensional and actual weight costs in ongoing shipping programs. Each bundle contains 50 mailers and ships via parcel carrier.