We use our own cookies and those of third-parties in order to improve your experience.
You can read more information about our Cookie Policy
Quantity Savings Tier 5+
Subtotal
Free UK delivery over £250*
Free delivery on all UK mainland orders over £250
Free delivery when you spend £250
Limited to UK mainland orders
We’re taking you to the next step please don’t hit back or refresh. If you’re stuck here please contact us.
My dimensions are in:
mmcminches
I'm looking for:
BoxesPostalLabelsBags
Show Me:
Best fit - show the closest matches to these dimensionsItem fit - show only packaging bigger than these dimensions
Find Products
Best fit - show the closest matches to these dimensionItem fit - show only packaging bigger than these dimensions
BoxesBagsPostal
These C3 Manilla Board Envelopes are ideal for sending A3 documents safely. Our manilla board envelopes offer a high level of protection for your important items as they are constructed from a combination of strong 1000 micron back board and 120gsm manilla paper front, which protect your documents while keeping postage costs low. These manilla board envelopes feature a peel and seal strip for quick and simple packing and are printed with “Please Do Not Bend” to help avoid your important items being bent or folded in transit.