Steinmetz sobres de envío DIN B4, sin ventana, autoadhesivos, 110 g/m², marrón, 250 uds. (4569PR)

When your office needs to send out large documents, contracts, or catalogues without folding them, these B4 brown kraft envelopes are the workhorse you reach for. Each box contains 100 envelopes, so you're always ready for the next mailing run. The self-adhesive peel-and-seal flap makes packing fast: just remove the liner, press, and the envelope is securely closed. No moisture, no mess.

Key specifications

• Format: B4 (353 x 250 mm internal and external dimensions)
• Material: 90 gsm brown kraft paper
• Closure: Self-adhesive peel & seal
• Window: None (opaque for privacy)
• Opening: Long side
• Pack size: 100 envelopes
• Recyclable

Why choose it

These envelopes are built for durability. The 90 gsm kraft paper resists tears during handling and transit, while the opaque brown colour keeps contents confidential. The self-adhesive strip provides a strong, tamper-evident seal that stays closed until opened. And because they're recyclable, they're a responsible choice for your business.

Ideal use cases

• Sending A4 documents flat, without folding
• Mailing brochures, catalogues, or magazines
• Shipping small, flat items that need protection
• Office mailouts, legal documents, and reports

Good to know

Store envelopes in a cool, dry place to preserve adhesive quality. The long-side opening makes it easy to insert and remove contents. For larger volumes, consider ordering multiple packs to keep your mailing station fully stocked.