White C6 Bundle Postal Packaging - 190x140x35mm PK of 10 white C6 Postal bundle packaging pk of 10 £12.50 Out of stock. hite postal packaging boxes sturdy for posting. outer box : 190 x 140 x 35mm non window box: 168 x 115 x 26mm cushion padding: 165 x 112 Supplied flatpacked. Ideal for shipping cake sample packaging, brownies, large cookie box, chocolates, gifts and more. 100% recyclable. Shredded paper sold separate.