A4 Do Not Bend C4 Manilla Board Backed Envelopes – Pack of 10 (324mm x 229mm)

Protect important A4 documents during transit with these A4 Do Not Bend manilla board backed envelopes. Designed to prevent bending and creasing, each envelope features a rigid board backing that helps keep contents flat and presentable.

The durable manilla outer layer adds strength, while the hard board insert provides extra support for certificates, contracts, artwork, and official paperwork. Clear “Do Not Bend” text helps encourage careful handling through the postal system.

Sized at 324mm x 229mm, these envelopes fit A4 documents without folding. Supplied in a practical 10-pack, they are ideal for businesses and individuals who send important flat documents regularly.

• Usage:
  Insert your A4 document flat against the rigid board side, seal the flap securely, and attach your address label clearly on the front before posting.
• Care:
  Store flat in a dry environment to maintain strength and rigidity. Avoid moisture exposure before use to prevent softening of the board backing.
• Who It’s For:
  Suitable for offices, schools, legal firms, online sellers, and anyone sending important A4 documents that must arrive without folds, bends, or creases.

Key Features

• Pack of 10 A4 C4 board backed envelopes

• Size: 324mm x 229mm

• Suitable for unfolded A4 documents

• Strong manilla outer paper

• Rigid board backing to prevent bending

• “Do Not Bend” printed for clear handling