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
White corrugated cardboard literature mailers, pack of 50

Zoro Select

Zoro Select M433 Literature Mailer White 4x3x3 in 50 pack

SKU CH-JN50-XAQDP

White corrugated cardboard mailers, 4×3×3 in inside, ECT-32 B-flute, 65 lb capacity, 100 % post-consumer recyclable, pack of 50

  • Product colorWhite
  • Protects contents with ECT-32-B single-wall corrugated strength
  • Holds up to 65 lb maximum load per mailer
  • 100 percent post-consumer recyclable cardboard construction
  • Pack of 50 mailers for high-volume shipping
  • 4 x 3 x 3 in interior fits small literature items

Compact Literature Mailer

The Zoro Select M433 is a white corrugated cardboard mailer designed for shipping documents and flat items. Each unit measures four by three by three inches inside and uses a single B-flute wall rated at ECT-32. The pack contains fifty mailers suited for office mailing rooms and e-commerce fulfilment.

Structural Strength and Weight

The ECT-32 B-flute construction supports a maximum load of sixty-five pounds while keeping the wall thickness at three-sixteenths of an inch. This rigidity protects contents during transit without adding unnecessary bulk to the shipment. The white exterior presents a clean surface for labels and branding.

Pack Efficiency and Recyclability

Fifty mailers per case reduce reorder frequency for high-volume shippers. Every mailer is made from one hundred percent post-consumer recyclable cardboard, supporting sustainability goals. The self-locking design assembles quickly without tape, freeing packing time for other tasks.

How it compares

Measured against everything we stock in Packing Materials & Shipping Labels, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 93% of the 3,067 comparable items (median $52.99).

Specifications

Product
Brand nameZORO SELECT
Product colorWhite

Questions about this item

How do you set up the 4×3×3 in literature mailer and what step is often missed?

Fold the scored flaps along the B-flute walls, lock the side tabs into the slots, and press the bottom panel flat so the 3/16 in wall thickness seats evenly — the step most people skip.

What part of the mailer will need replacement first with repeated use?

The B-flute corrugated walls and locking tabs wear from folding cycles; once the 3/16 in walls crush or tabs tear, the 65 lb load rating no longer holds.

What limit appears first when the mailer is loaded near its 65 lb capacity for extended periods?

The single-wall ECT-32-B construction begins to bow under sustained 65 lb loads, reducing internal height before the material actually fails.

More in Packing Materials & Shipping Labels

Similar items