C4 Brown Board Backed Envelopes – 324 x 229mm ‘Please Do Not Bend’ (Rigid Mailers)

C4 Brown Board Backed Envelopes – 324 x 229mm ‘Please Do Not Bend’ (Rigid Mailers)

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Product type: Board Backed Envelopes

Vendor: Send It By

Tags: 324 x 229 mm envelopes, brown rigid mailers, c4 board backed envelopes, hard back envelopes, office stationery, please do not bend envelopes, postal supplies

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Description

  • C4 Size (324 × 229mm) – Fits A4 sheets without folding.
  • Board Backed – Rigid backing to prevent damage in transit.
  • ‘Please Do Not Bend’ Print – Ensures safe handling during delivery.
  • Strong & Durable – Ideal for mailing certificates, photos & artwork.
  • Multi-Purpose Use – Perfect for schools, offices, and home mailing.