310 x 230 x 16mm A4 Tuck Front Superflat White Mailing Box B37 - Superflat Mailing Box

This Superflat mailing box offers robust protection for fragile items, designed to fit A4 dimensions and ship as a large letter. Crafted from quality kraft corrugated cardboard with over 50% recycled fiber, it provides superior protection at an accessible price point.

• 310 x 230 x 16mm internal dimensions provide ample space for A4 items while maintaining letter-rate compliance.
• Constructed from durable kraft corrugated cardboard featuring an F-flute design for enhanced rigidity.
• White exterior and natural matte finish offer a clean, professional presentation for your shipments.
• Designed with a secure tuck-front, self-locking closure for efficient packing and reliable transit.
• FSC Certified and compostable/recyclable materials reflect a commitment to sustainability.

Compared to standard corrugated boxes, this Superflat model excels in its slim profile, specifically engineered to meet large letter postal requirements without compromising protection. Its refined design optimizes packing efficiency for high-volume senders, ensuring items arrive safely and cost-effectively, often avoiding higher parcel rates.

Key Technical Advantages: Technology and Performance

The Superflat mailing box integrates advanced design principles with eco-conscious materials to deliver exceptional shipping performance. Its F-flute construction provides superior crush resistance and rigidity, safeguarding contents during transit. The intuitive tuck-front mechanism ensures a secure seal, minimizing the risk of accidental opening while speeding up the packing process. Backed by Boxmore's 365-Day Money Back Guarantee, this mailing box offers peace of mind alongside reliable, professional shipping for your valuable items.