6.5x4.875x3.75" ECT-32 White Corrugated Mailers - Crush Resistant, 50-Pack
$34.27
/ bundle of 50$0.69 per mailer
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 1/2" × 4.875" × 3 3/4"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 6 1/2" × 4.875" × 3 3/4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 10.52 lb |
| Outer carton (shipping) | 22.0 × 17.0 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 812578008254 |
| SKU | MLR4 |
About this item
SKU MLR4 — 6 1/2" × 4.875" × 3 3/4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
Common questions
What does ECT-32-B mean, and how does it impact stacking performance?
ECT-32-B refers to Edge Crush Test 32 pounds per inch with B-flute corrugation. This rating ensures the mailer resists crushing under stacked loads in warehouses while remaining lightweight. For a bundle of 50 units, you'll achieve reliable protection without compromising freight efficiency, ideal for high-throughput fulfillment operations.
How much labor and material do I save with one-piece fold-and-tuck design?
Employees assemble each mailer in 2, 3 seconds with zero tape, glue, or staples. For a 1,000-unit monthly volume, that's 40+ hours of labor saved per month, plus elimination of tape and adhesive inventory. The design also reduces packaging waste, lowering disposal costs.
Is this mailer suitable for fragile items?
Yes. The double-wall corrugated construction on the front and sides provides excellent crush resistance for lightweight fragile products like glassware, electronics, and cosmetics. For heavier or extremely delicate items, consider pairing with interior cushioning materials.
What shipping cost advantages does this size deliver?
The compact 61/2" 4, Öû" 3" footprint minimizes dimensional weight charges with major carriers (USPS, UPS, FedEx). Combined with the lightweight ECT-32-B material, this mailer delivers 15, 25% postage savings per unit compared to oversize boxes, compounding to substantial annual savings at scale.
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.