Self-adhesive envelopes NC Koperty KOPERTY B4 SK, brown, pack of 25, B4 flat paper, peel-and-seal

NC Koperty B4 self-adhesive envelopes in brown, pack of 25 are flat paper envelopes sized to hold B4 documents or folded larger sheets. Each envelope features a peel-and-seal adhesive strip that enables quick, secure closure without additional tape or glue. The envelopes are designed for mailing, document storage and archival use where B4-format sheets are required; their brown paper finish provides basic protection and a neutral appearance suitable for professional correspondence and internal document handling.

Advantages

These envelopes offer time-saving peel-and-seal closure for fast handling, consistent sizing for B4 documents, and a plain brown paper exterior that is easy to write on or label. The pack contains 25 identical envelopes, simplifying inventory and predictable usage in offices and mailrooms. The construction is optimized for flat shipments and paperwork storage without bulk padding.

Suitable for

• Mailing B4 documents and certificates
• Internal document transfer between departments
• Archival storage of flat papers and forms
• Print shops and mailroom batching
• Shipping folded larger documents that fit B4 size

Key specifications

• Format: B4-sized flat envelope
• Closure type: peel-and-seal adhesive strip
• Color: brown
• Material: paper
• Pack quantity: 25 envelopes
• Designed for flat documents and thin contents

How to use

Insert the B4 document or folded content into the envelope so that it lies flat without bulging. Remove the protective strip to expose the adhesive, then press the flap firmly along the seal to close. For added security during transit, reinforce the seal with tape if necessary. Store unused envelopes in a dry place to preserve the adhesive performance and paper condition.

Usage recommendations

Use these envelopes for non-bulky documents; avoid overfilling to prevent seal failure. For important or sensitive items, consider adding a packing slip or using a secondary protective sleeve. Keep packs in a cool, dry area to maintain adhesive quality.