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Clear Polybag (100% Recycled)
600mm x 900mm x 40 micron (24" x 36" x 160 gauge)
From £36.16 per 150

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Expandable Cardboard Envelope - A4

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MCB03 Expandable Cardboard Envelope - A4

334mm wide x 234mm long (flat) / 294mm wide x 194mm long x 40mm deep (expanded)

A4 size Amazon-style solid paperboard envelope with expandable side gussets for simple conversion into a cardboard box. Also known as a capacity mailer or book mailer. 100% recyclable. Boxed in 50's.

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Order Quantity	No. in pack	Price per pack	Price per pack	Price per 1000
		(Inc. VAT)	(Ex. VAT)	(Ex. VAT)
50+	50	£16.54	£13.78	£275.60
250+	50	£14.88	£12.40	£248.00
500+	50	£14.00	£11.66	£233.20
1000+	50	£9.72	£8.10	£162.00

A4 expandable cardboard mailer - product features

A truly adaptable packaging solution for a variety of needs.
Use as a rigid envelope, a box, or any flexible form in between.
Securely seal with the integral peel & seal, and quickly open with the rip-strip.
Strong, solid cardboard construction offers lightweight yet dependable protection.
Perfect for businesses of all sizes needing flexible shipping options.
Tailor the size to precisely match your product's dimensions.
As the sides expand, depth increases, while width and/or length will decrease.
Great for sending documents, books, and other A4-sized items via mail or courier.
Also recognised as a capacity mailer, book mailer, or book box.
Fits within Royal Mail's 'Large letter' or 'Small parcel' sizes - details provided below.
Eco-conscious choice - 100% recyclable in your regular recycling.