Postal Boxes

Slim cardboard letterbox boxes that post as a Royal Mail Large Letter (up to 35.3 × 25 × 2.5 cm and 750 g) and fit through most letterboxes, so parcels arrive even when nobody is home. Three 20 mm deep sizes from 220 × 155 mm to 320 × 230 mm, for flat items such as jewellery, socks, cards and small books.

Die-cut folding postal boxes (mailer boxes) that fold into a neat, rigid box with a tuck-in lid, with no tape needed underneath. A clean, professional way to post e-commerce orders, gifts and subscription boxes, in 7 sizes from 150 × 100 × 50 mm to 450 × 350 × 200 mm, most of them sized for Royal Mail Small Parcels.

Wrap-around cardboard book mailers that fold around books, folders and other flat items and hold them firmly, with a depth that adjusts to the item. Protects corners and edges in the post much better than an envelope. Two sizes: 220 × 155 mm and 320 × 230 mm.