4 x 4 x 37" White Square Mailing Tubes

4" x 4" x 37" White Square Mailing Tubes, ECT-32-B corrugated, self-locking one-piece construction. No tape or adhesive required. Bundle of 50.
  • Dimensions: 4" x 4" x 37" interior
  • Material: White ECT-32-B Corrugated Board
  • Quantity: 50 square tubes per bundle
  • Weight: Approximately 0.60 lbs per tube
  • Shipping: Ships via parcel
  • Stock Number: M4437
4 x 4 x 37" White Square Mailing Tubes
Specifications

Order in Multiples of: 50

Freight Class: 125

Weight: 0.606 EA

NMFC Code: 29785-5

Ships Parcel: Yes

Description

These 4 x 4 x 37 inch white square mailing tubes are built from ECT-32-B white corrugated board, delivering a rigid, crush-resistant structure designed to protect posters, banners, blueprints, fabric rolls, and other elongated items through the full shipping cycle.

The square cross-section is a practical advantage over round tubes: it eliminates rolling on packing benches and conveyor lines, keeping tubes stationary during pack-out. Fulfillment centers, print shops, architectural firms, and fabric distributors all benefit from the added handling control this profile provides.

Each tube is a one-piece design that arrives flat for compact storage and folds together without tape or glue, reducing assembly time at high-volume stations. At approximately 0.606 lbs per unit, these tubes are lightweight relative to their 37" length. Each bundle contains 50 tubes.