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

Business Source

Business Source 42100 9x12 Kraft Envelopes 250/Box 28 lb

SKU CH-X72V-280GY MPN 42100

Kraft mailing envelopes hold catalogs and documents with 28 lb opaque paper for privacy, moisture-activated gummed flaps for a secure seal, and an open-ended style for easy insertion.

  • TypeBusiness Envelopes
  • ColorKraft
  • Holds up to 250 envelopes per box for high-volume mailing
  • 28 lb kraft paper keeps contents private during transit
  • 9 x 12 inch size fits catalogs and brochures easily
  • Gummed flap seals securely once moistened
  • Open-end design allows quick insertion and removal

Envelope Capacity & Format

This pack contains 250 kraft envelopes measuring 9 by 12 inches. The open-ended design allows quick insertion of documents, catalogs or brochures. Each envelope uses 28 lb opaque stock that keeps contents private during transit. The moisture-activated gummed flap provides a secure seal once moistened.

Suitable Uses & Limits

Suits offices that send flat mailings such as reports, promotional sheets or direct-mail pieces in bulk. The 28 lb kraft paper resists tearing but is not padded, so fragile items need separate protection. Buyers who need bubble lining, tamper-evident features or a peel-and-seal closure should look at a different envelope style.

Critical Specification

The 28 lb kraft construction is the single specification that decides fit: it determines opacity, stiffness and postage weight for every mailing. If your application requires a lighter sheet, a heavier board or a different closure method, this box will not meet the requirement.

Highlights

  • Holds up to 250 envelopes per box for high-volume mailing
  • 28 lb kraft paper keeps contents private during transit
  • 9 x 12 inch size fits catalogs and brochures easily
  • Gummed flap seals securely once moistened
  • Open-end design allows quick insertion and removal

Specifications

TypeBusiness Envelopes
BrandBusiness Source
ColorKraft
Shipping weight4.99 kg
Package size470 × 184 × 121 mm

Questions about this item

What comes in the box and do I need anything else to seal them?

Each box contains 250 Business Source 42100 envelopes measuring 9 by 12 inches with a 28 lb kraft construction and moisture-activated gummed flaps. No extra sealing supplies are required.

Which capacity should I choose for regular office mailing?

The product is sold as a single 250-count box under model 42100; there are no alternative capacities or versions listed for this item.

How does the 28 lb kraft weight perform when mailing catalogs or brochures?

The 28 lb opaque kraft material provides a heavy-duty feel that resists tearing and keeps contents private during transit of documents, catalogs and promotional pieces.

Also in this aisle

People compared these

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