Royal Mail Large Letter Boxes 337 x 236 x 19mm Maltese Cross C4 2 it tackles multiple fire types

it tackles multiple fire types effectively

The internal dimensions are 150mm x 215mm

providing an eco-friendly packaging solution

Working Pressure - 56 bar @ 20 degrees C

Royal Mail Large Letter Boxes 337 x 236 x 19mm Maltese Cross C4 2 it tackles multiple fire typesInternal Dimensions 337x236x19mm (13. 2"x9. 3"x0. 9"). External Dimensions 349x249x24mm (13. 8"x9. 8"x1"). Royal Mail Maximum Large Letter Size. Single Wall Large Letter Postal Mailing Cardboard Boxes are specifically designed to meet Royal Mail's 'large letter' guidelines, significantly reducing postage costs. Engineered for maximum operational and postal efficiency, these boxes feature a Maltese cross design, making them extremely easy to