Ensure safe and professional shipping with our White Mailing Box, designed specifically for A4-sized items. Measuring 310 x 230 x 105mm, this die-cut mailing box offers the perfect blend of durability and style, making it ideal for e-commerce businesses and online retailers.

The White Mailing Box 310x230x105mm A4 Die Cut is engineered for businesses requiring robust, postal-compliant packaging for oversized items. Its 310x230x105mm dimensions align with carrier standards for large letters, making it ideal for shipping A4 documents, catalogs, or hardcover books while qualifying for affordable postal rates. This design eliminates oversized parcel fees, ensuring cost efficiency for e-commerce sellers, publishers, and educational institutions.

Constructed with 4mm FSC-certified white corrugated kraft board, this box delivers industrial-grade durability, capable of withstanding 25kg/cm² crushing force. Whether shipping fragile electronics, framed artwork, or ceramic tableware, its reinforced walls provide unparalleled protection during transit. The bright white finish offers a professional appearance, ready for custom branding, QR codes, or eco-labels to enhance unboxing experiences and align with corporate identity.

The innovative tape-free assembly system streamlines workflows. Precision die-cut slots and self-locking flaps allow secure sealing in just 10 seconds—no tools or adhesives required. This feature is perfect for high-volume operations handling office supplies, textbooks, or subscription boxes, reducing labor costs and accelerating fulfillment speeds.

Sustainability is central to this product. Made from 100% recyclable, bleach-free kraft paper, it supports eco-conscious initiatives for schools, B2B enterprises, and zero-waste brands. The smooth surface accommodates custom printing, making it ideal for companies prioritizing branded, plastic-free logistics.

Backed by a 3-year quality guarantee, this mailing box offers scalability for growing businesses. Volume discounts and split shipments cater to publishers, schools, or corporations managing seasonal peaks or large inventories. Trust this versatile, heavy-duty solution to optimize shipping costs, enhance brand credibility, and reduce environmental impact.