6.5x4.875x3.75 ECT-32 White Corrugated Mailers 50-Pack
$38.74
/ bundle of 50$0.77 per mailer
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| Quantity (bundle) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
| Pallet or repeat orders | Get a delivered quote |
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Shipping & returns details
Ships from U.S. warehouses. 30-day returns on unopened stock items.
Shipping cost and timing depend on the product, quantity and destination. Parcel or freight service is used as appropriate. Shipping discounts apply only to qualifying orders and rates.
Standard delivery is to street addresses in the contiguous U.S. Eligible returns must be unused and in original packaging; return shipping may apply.
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Inside dimensions
6 1/2" × 4.875" × 3 3/4"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
From our customers
“The packaging is sturdy, well-made, and looks professional. We’re really pleased with the quality.”
“They helped us choose the right packaging for our products and made ordering easy.”
“Ordering was easy, everything arrived as described, and we’ll definitely order again.”
Questions before you order?Talk to us
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 |
| Physical units per order increment | 50 (one bundle) |
| 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.
The 6.5x4.875x3.75" ECT-32 White Corrugated Mailers - Crush Resistant, 50-Pack is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 6.5" x 4.875" x 3.75"; white material; ECT-32; bundle of 50. The mailer format works when the product needs a presentation-style carton or compact shipping box instead of a standard RSC case.
Ideal for shipping apparel, books, mugs, accessories, gifts, and small fragile items. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.
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.