StrongPost Postal Box - Slim A6

StrongPost Die Cut Postal Boxes – Secure, Letterbox-Friendly Packaging for E-Commerce

Our StrongPost Die Cut Postal Boxes offer premium protection and a professional unboxing experience for online retailers. Designed for strength, speed, and presentation, these self-locking cardboard boxes are perfect for shipping small to medium-sized items safely and efficiently. With no need for tape and a precise die-cut finish, they’re the smart choice for streamlined packing operations.

The StrongPost range includes multiple letterbox-friendly sizes that meet UK Royal Mail large letter and small parcel specifications – making them ideal for subscription boxes, fashion accessories, tech gadgets, books, and cosmetics.

Key Features:

• Letterbox-compliant sizes: Including 175 x 120 x 20mm, 220 x 150 x 20mm, 315 x 220 x 20mm, and more
• Strong corrugated board for maximum protection in transit
• Clean die-cut design for a consistent, high-quality finish
• Self-locking closure – no tape required
• Flat-packed for space-saving storage and fast assembly
• 100% recyclable and eco-conscious materials

Choose StrongPost for stylish, secure, and sustainable postal packaging that your customers will love to receive.