8 x 4 x 4" White Corrugated Mailers (Bundle of 50)

• Dimensions: 8" x 4" x 4" interior
• Material: White ECT-32-B Corrugated Board
• Quantity: 50 mailers per bundle
• Weight: Approximately 0.23 lbs per mailer
• Shipping: Ships via parcel

These 8 x 4 x 4 inch white corrugated mailers are built from ECT-32-B single wall corrugated board and fold into a fully closed mailer without tape, glue, or staples. The one-piece self-locking construction sets them apart from standard RSC boxes, eliminating sealing steps entirely at the packing station.

The fold-over design creates reinforced double wall panels along the front and sides, adding crush resistance at the points most exposed to pressure during transit and automated sortation. At approximately 0.23 lbs, the lightweight build supports dimensional weight management for e-commerce fulfillment, direct-to-consumer shipments, retail replenishment, and subscription box operations.

Constructed from white corrugated board, these mailers present a clean exterior suitable for branded inserts or external labeling without additional overwrap. Each bundle contains 50 mailers and ships via parcel carrier.