Pricing In Proportion Boxes and Envelopes
Compliant Boxes & Envelopes Under Pricing In Proportion Rules
PiP BOXES - These Pricing in Proportion Boxes 'Large Letter Size' are all designed to provide maximum protection for your products, whilst allowing you to benefit from sending them out as large letters and not small packets under Royal Mail's Pricing in Proportion guidelines.
These cardboard Large Letter Boxes will save you an enormous amount of money on your postal costs. Scroll down for PiP ENVELOPES
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Flat Postal Box Design Allows Postage As Large Letters. All PiP Boxes Are Delivered Flat Packed For Easy Storage. (Samples Sent Assembled)
