In stock SKU M644GTIN 812578008162

6x4x4 ECT-32-B White Corrugated Mailers - Crush Resistant, Bundle of 50

Ship small, lightweight items with confidence using these ECT-32-B white corrugated mailers. One-piece fold-and-tuck design requires no tape, glue, or staples–assembly takes seconds. Double-wall crush-resistant construction protects contents while reducing dimensional weight charges. 50-box bundle.
$27.28 / bundle of 50$0.55 per mailer
= 50 mailers · Total $27.28
Request bulk pricing

Ships from the nearest of 5 US warehouses · freight calculated at checkout

30-day returns on stock items · Return policy

Inside dimensions 6" × 4" × 4"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions6" × 4" × 4" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Order in multiples of50
Bundle weight8.84 lb
Outer carton (shipping)21.0 × 14.75 × 5.5 in
LTL freight classClass 125
GTIN812578008162
SKUM644

About this item

SKU M644 — 6" × 4" × 4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

6x4x4 ECT-32-B White Corrugated Mailers, Bundle of 50. Use this item for shipments or presentation packs where the product fits the listed inside dimensions and closure style. Listed specs include size 6 x 4 x 4 in; material corrugated; sold as Bundle of 50. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

Frequently bought with

Common questions

What does ECT-32-B mean, and why does it matter for my operation?
ECT (Edge Crush Test) 32-B indicates 32 lbs per inch of edge crush strength with B-flute corrugation. This rating ensures reliable protection for lightweight parcels while keeping material costs and shipping weight low, critical for high-volume fulfillment centers managing margin pressure.
Do I need tape or adhesive to close these mailers?
No. The one-piece design features integrated fold-and-tuck flaps that secure without tape, glue, or staples. This speeds packing by 15, 20 seconds per box and eliminates consumable costs.
What's the maximum weight these mailers can safely handle?
ECT-32-B mailers safely support 4, 5 lbs without crush risk under normal handling. For heavier items, consider ECT-44 or ECT-51 corrugated alternatives available in our catalog.
How do these compare to kraft paper mailers or padded envelopes in terms of freight efficiency?
Corrugated mailers provide crush resistance compared to padded envelopes while maintaining lower dimensional weight than rigid boxes. This reduces parcel surcharges and damage rates, delivering 20, 30% cost savings on high-volume shipping programs.

Order support

Questions on specs or freight?

Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.

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