4 x 4 x 3" White Corrugated Mailers

These 4" x 4" x 3" white corrugated mailers are built from ECT-32-B corrugated board and assemble via a one-piece fold-together design that requires no tape, glue, or staples. The folded structure creates double-wall panels on the front and sides, delivering crush resistance during transit without adding meaningful package weight.

The compact footprint and secure closure make these mailers well suited for e-commerce fulfillment, retail distribution, subscription box operations, and manufacturing environments shipping small components or accessories. The white exterior accepts direct printing, pressure-sensitive labels, and custom branding without surface preparation.

Each mailer weighs approximately 0.12 lbs, keeping both actual and dimensional weight minimal — a practical advantage for high-volume shipping operations managing per-unit postage or carrier costs. Sold in bundles of 50 and ships via parcel carrier.