C4 / A4 Cardboard Boxes Royal Mail Large Letter Size Dimensions Postal Shipping Boxes (5)
C4/A4 320mm x 230mm x 21mm Royal Mail Brown Large Letter Cardboard Postal Mailing PiP Boxes (Pack of 5)
TGL PACKAGING™ C5 / A5 (218x159x20mm) Royal Mail Brown Large Letter Cardboard Postal Mailing PiP Boxes (10)
229x152x102mm Brown Cardboard Boxes MAILING Gift Packet Carton for Posting Royal Mail Parcel Mailers 9x6x4 Inches 5pcs
