Ideal for warehouse managers and fulfillment directors shipping small, lightweight items that require reliable protection without excess weight. The 12" x 9" x 4" dimension perfectly fits jewelry, cosmetics, electronics, and fragile goods, while ECT-32-B corrugated construction delivers crush resistance that reduces damage claims and returns.
Best For
How to Choose the Right Packaging
Specs at a Glance
| Material | ECT-32-B White Corrugated |
| Dimensions | 12" L x 9" W x 4" H |
| Color | Oyster White |
| Assembly Type | One-Piece Fold-and-Tuck (No Assembly Required) |
| Recyclable | Yes |
Common Use Cases
- E-commerce small parcel shipping and direct-to-consumer fulfillment Fragile item protection for jewelry, watches, and accessories Cosmetics and beauty product distribution Electronics and tech accessory shipping Subscription box and gift packaging for retail
What You'll Receive
- Bundle of 50 white corrugated mailers (12" x 9" x 4")
Shipping & Packaging
Frequently Bought Together
Bundle & Save 5%Frequently Asked Questions
ECT-32-B (Edge Crush Test 32 pounds per inch) indicates the mailer's vertical stacking strength and bursting resistance. This rating ensures reliable protection for small-to-medium items during multi-box pallet stacking, reducing damage in automated sorting facilities and transit.
Employees assemble these mailers in seconds without tape, glue, or staples, eliminating 15-30 seconds of labor per box compared to tape-sealed boxes. On 500+ daily shipments, this reduces fulfillment labor costs by 10-15% while maintaining professional appearance.
Yes. The 12" x 9" x 4" dimensions comply with USPS, UPS, and FedEx standards for small parcel sorting. They process smoothly through automated conveyor belts and dimensional weight scanners in modern fulfillment centers.
Lightweight corrugated mailers eliminate excess packaging material that carriers measure for DIM weight billing. On 1,000 monthly shipments, reducing packaging weight can save $300-600 in freight costs depending on your carrier and shipping zone.
Technical Specifications
| Material | ECT-32-B White Corrugated |
| Dimensions | 12" L x 9" W x 4" H |
| Color | Oyster White |
| Assembly Type | One-Piece Fold-and-Tuck (No Assembly Required) |
| Recyclable | Yes |
| Color | White |
| Strength / Material | ECT-32-B Corrugated |
| Dimensions (Internal) | 12"" × 9"" × 4"" (L × W × H) |
Product Downloads
Shipping Information
Outer Carton Dimensions
31.25" × 31.0" × 5.75" (L × W × D)
Unit of Measure
BUNDLE
Qty Per Shipping Unit
50 PER BUNDLE
LTL Freight Class
Class 125
Carrier Eligibility
UPS Ground & Freight Eligible
TRUST & RELIABILITY
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