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5 1/2 x 3 1/2 x 3 1/2" White Corrugated Mailers

5 1/2" x 3 1/2" x 3 1/2" White Corrugated Mailers, ECT-32-B, self-locking one-piece construction. No tape or adhesive required,  50 per bundle.
  • Dimensions: 5 1/2" x 3 1/2" x 3 1/2"
  • Material: ECT-32-B
  • Quantity: 50 per Bundle
  • Weight: Approximately 0.1552 per Mailer
  • Shipping: Ships Parcel
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Stock NumberMSOL50$0.63300$0.63500$0.631M+$0.63Add to Cart
5 1/2 x 3 1/2 x 3 1/2" White Corrugated Mailers
Specifications

Inside Dimensions L x W x H: 5 1/2 x 3 1/2 x 3 1/2"

Bundle Quantity: 50

Order in Multiples of: 50

Freight Class: 125

Weight: 0.1552 EA

NMFC Code: 29785-5

Ships Parcel: Yes

Description

These 5 1/2" x 3 1/2" x 3 1/2" white corrugated mailers are built from ECT-32-B flute board and feature a one-piece fold-together construction that locks shut without tape, glue, or staples — reducing pack-out steps at the station level while maintaining a clean, retail-ready white exterior.

The folding structure creates double-wall reinforcement along the front and sides, adding rigidity where impact risk is highest during transit. At approximately 0.155 lbs per unit, the format keeps both actual and dimensional weight low, making it practical for high-volume e-commerce fulfillment, subscription box operations, retail replenishment, and small-parts distribution in manufacturing and medical supply environments.

Constructed from ECT-32-B corrugated board, these mailers hold their shape around snug-fitting contents without requiring secondary packaging materials. Each bundle contains 50 mailers and ships via parcel carrier.

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