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White corrugated cardboard literature mailer, cube-shaped, flat-packed stack of fifty

Zoro Select

Zoro Select M644 6x4x4 in Literature Mailer White

SKU CH-5QA2-662F8

White corrugated cardboard literature mailer with 65 lb capacity, ECT-32-B strength, and 50 per pack

  • ColorWhite
  • Holds up to 65 lb with ECT-32-B strength
  • Single-wall B-flute construction protects contents during transit
  • 100 % post-consumer recyclable cardboard reduces environmental impact
  • Pack of 50 mailers keeps shipping stations stocked
  • Compact 6 x 4 x 4 in interior fits literature and small items

Compact White Literature Mailer

This Zoro Select M644 mailer measures 6 x 4 x 4 inches inside and ships flat in packs of fifty. The single-wall B-flute corrugated cardboard carries an ECT-32 rating and a 65 lb maximum load capacity. It is designed for mailing documents, catalogues or small flat items that need rigid protection.

Quick Assembly With Fold Lines

Pre-scored creases let you erect the box in seconds without tape or glue on the seams. The 3/16 inch wall thickness resists crushing but can dent if heavy objects are stacked on top during transit. Overloading past the rated capacity is the most common cause of corner splits.

Shippers Sending Flat Printed Matter

Ideal for businesses that mail brochures, reports or thin product samples in volume. The white exterior provides a clean surface for labels or branding. Buyers who need cushioning for fragile goods, larger dimensional space, or double-wall strength should look at different packaging options.

Highlights

  • Holds up to 65 lb with ECT-32-B strength
  • Single-wall B-flute construction protects contents during transit
  • 100 % post-consumer recyclable cardboard reduces environmental impact
  • Pack of 50 mailers keeps shipping stations stocked
  • Compact 6 x 4 x 4 in interior fits literature and small items

Specifications

BrandZORO SELECT
ColorWhite

Questions about this item

How can I confirm the mailer meets the ECT-32-B rating after assembly?

The ECT-32-B rating is a material specification; once the single-wall B-flute corrugated board is folded into shape the rating is inherent — no separate test is needed.

What comes in the package and do I need any extra materials to use these mailers?

The box contains 50 white literature mailers measuring 6×4×4 in inside dimensions with 3/16 in wall thickness; tape or labels for sealing are not included.

Which version should I choose if I need to ship items weighing up to 65 lb?

This M644 model is rated for a maximum load of 65 lb; if your contents stay at or below that weight the listed version is the appropriate choice.

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