100pcs 310 x 220 x 16mm Superflat White Mailing Box B21

100-Piece Superflat White Mailing Box B21

Protect your shipments with the 100-piece Superflat White Mailing Box B21, an efficient and eco-conscious packaging solution designed for modern businesses. These boxes are crafted from quality kraft corrugated cardboard, incorporating over 50% recycled fiber to minimize environmental impact without compromising on durability.

• 310 x 220 x 16mm internal dimensions provide ample space for larger letter items while maintaining a sleek, flat profile.
• White outside, brown inside finish offers a clean, professional aesthetic that can be customized with branding.
• Self-locking die-cut folding design ensures quick assembly and a secure closure, saving time during packing.
• Lightweight construction helps reduce shipping costs, especially when sending items classified as large letters.
• FSC Certified materials guarantee responsible sourcing, aligning with sustainability goals.

Compared to bulkier packaging or less rigid mailers, these Superflat boxes are engineered to slide through postal systems as large letters, significantly cutting down shipping expenses. Their compact, rigid design offers superior protection against bending and crushing, which is often a concern with standard envelopes or thinner cardboard options.

Key Technical Advantages: Technology and Performance

The e-flute construction of these mailing boxes provides a balance of strength and flexibility, ideal for protecting delicate items during transit. Featuring a natural, uncoated matte finish, they present a refined look. Backed by a 365-Day Money Back Guarantee, this product offers reliable performance and customer satisfaction.