F5 8x6x4 inch Blue Postal Box
These high-quality blue postal boxes are perfect for small items, e-commerce orders, and retail packaging. Designed to be strong, lightweight, and easy to assemble, they’re ideal for businesses looking for blue mailer boxes to stand out in shipping.
Our mailing boxes come flat-packed and are quick to fold, saving you time. Whether you're shipping gifts, cosmetics, or electronics, these blue posting boxes ensure secure delivery.
✔ Available in wholesale postal box packs
✔ Durable corrugated cardboard
✔ Vibrant blue finish to enhance your packaging
Upgrade your packaging with our range of blue shipping boxes, available in multiple sizes.
Blue F4, F5, F6 Pricing in proportion (PIP) die cut cardboard postal boxes
Blue outside and White inside
Quick and easy to assemble, sealable with clear/brown tape
Made from a hard 1.2mm Thick single wall cardboard
PLEASE SEE FULL DESCRIPTION BELOW FOR SIZE GUIDE
F4: EXTERNAL SIZE: 177.8mm x 139.7mm x 50.8mm (7" x 5.5" x 2") - (WEIGHT: 110g)
F5: EXTERNAL SIZE: 203.2mm x 152.4mm x 101.6mm (8" x 6" x 4") - (WEIGHT: 260g)
F6: EXTERNAL SIZE: 254mm x 152.4mm x 101.6mm (10" x 6" x 4") - (WEIGHT: 330g)