250 C5 A5 STRONG PiP Royal Mail Large Letter Size Cardboard POSTAL POSTING BOXES

C5 PiP – 218mm x 159mm x 19mm. Mini PiP – 101mm x 101mm x 19mm. DL PiP – 217mm x 108mm x 20mm. C4 PiP – 320mm x 230mm x 21mm. Maxi PiP – 347mm x 246mm x 20mm.

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