We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Flat stack of fifty white corrugated cardboard mailers 3x3x1 in

Zoro Select

Zoro Select M331 Literature Mailer White 3x3x1 in 50ct

SKU CH-04ZV-EY3VK

White corrugated cardboard mailers with 3 × 3 × 1 in interior dimensions, ECT-32 B-flute construction and 65 lb load capacity, sold in packs of 50

  • ColorWhite
  • White exterior presents a clean, professional look for shipments
  • Single-wall B-flute corrugated construction protects contents during transit
  • 3×3×1 in interior fits small literature and flat items
  • 65 lb maximum load capacity handles heavier documents without crushing
  • 50-count pack keeps a ready supply for ongoing mailing needs

White Corrugated Literature Mailer

The Zoro Select M331 is a single-wall corrugated cardboard mailer sized at 3 in by 3 in by 1 in inside dimensions. It ships flat in a 50-count pack for high-volume literature, document or small-product fulfilment. The ECT-32 B-flute construction delivers a 65 lb maximum load capacity while keeping the package light. Buyers who need larger internal volume or heavier-duty protection should look elsewhere.

100 % Recyclable B-Flute Build

Each mailer uses 3/16 in B-flute board with 100 percent post-consumer recyclability and a clean white exterior. The single-wall design folds quickly without tape on the seams, so packing lines move faster and recycling streams stay uncontaminated. Operations that require double-wall rigidity or moisture-resistant coatings will not be served by this specification.

50-Carton Bulk Quantity

The carton contains exactly 50 mailers, matching the 331 model pack size for easy inventory planning. No smaller bundles or individual units are offered in this listing. Teams that ship only a few pieces per week may find the case quantity excessive.

Highlights

  • White exterior presents a clean, professional look for shipments
  • Single-wall B-flute corrugated construction protects contents during transit
  • 3×3×1 in interior fits small literature and flat items
  • 65 lb maximum load capacity handles heavier documents without crushing
  • 50-count pack keeps a ready supply for ongoing mailing needs

Specifications

BrandZORO SELECT
ColorWhite

Questions about this item

What does the ECT-32-B rating mean for stacking strength?

The ECT-32-B rating indicates a 32 lb edge crush test with B-flute construction, supporting the stated 65 lb maximum load capacity for stacked shipments.

What are the exact outside dimensions for shelf spacing?

Outside dimensions are 3 in length, 3 in width, and 1 in height with a 3/16 in wall thickness for precise shelf planning.

How do I assemble the mailer without crushing the B-flute?

Fold along scored lines, insert contents, then press the tuck-top closure flat — avoid pinching the 3/16 in B-flute walls during folding.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.