C4 / A4 Envelope Stiffeners / Layer Pads - 310mm x 215mm
- Product Code: STIFF-C4#
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C4 / A4 Envelope Stiffeners - 310mm x 215mm
Our A4 envelope size stiffeners provide a flexible way to further protect the contents of your envelopes. You can choose to include them for the more delicate items you are posting or leave them out if they take your item into a higher Royal Mail Large Letter postage band.
Choose our strong C4 / A4 Envelope Stiffeners / Layer Pads for Increased strength with your A4 mailings or select an envelope stiffener from our other sizes.
C4 / A4 Envelope Strengthener Specification:
Size: 310mm x 215mm C4 / A4 Envelope Stiffeners
Board Grade: 125T/125T E Flute
Weight: 25g appx
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