Pack and post larger items securely with the Mass Dynamic A4/C4 Large Letter Postal Boxes. Made from 1mm corrugated kraft cardboard, these slim mailing boxes provide practical protection for documents, prints, clothing,...
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Pack and post larger items securely with the Mass Dynamic A4/C4 Large Letter Postal Boxes. Made from 1mm corrugated kraft cardboard, these slim mailing boxes provide practical protection for documents, prints, clothing, stationery and other suitably sized products.
Available in packs of 10, 25, 50 or 100 boxes, making them suitable for occasional personal postage, growing online businesses and regular e-commerce fulfilment.
The 1mm corrugated kraft construction helps protect contents against bending, pressure, crushing and minor impacts during handling and delivery.
With external dimensions of 330 × 230 × 22mm, the boxes are designed for Royal Mail Large Letter-compatible packaging when the completed parcel remains within the applicable size and weight limits.
Each box weighs approximately 45–50g, helping provide protective packaging without adding unnecessary weight to your shipment.
The practical folding construction allows the boxes to be assembled quickly for efficient daily packing. Packaging tape may be added for extra security during transit.
Store the boxes flat before use to help save valuable space in stockrooms, offices, packing areas and home workspaces.
Made from recyclable kraft cardboard, these postal boxes provide a practical packaging option for businesses looking to reduce unnecessary plastic use.
The clean kraft surface is suitable for shipping labels, stickers, stamps and branded packaging tape, helping create a professional presentation for customers.
Enjoy free standard delivery within 2–3 business days, or choose express delivery within 1–2 business days from £2.95. All orders are dispatched with care and tracked from dispatch to delivery.
Eligible unused items can be returned within 30 days in their original condition and packaging.
Customer satisfaction is at the core of everything we do!
For over 30 years, our family-run business has delivered practical, stylish and durable products for modern homes. Choose MASS DYNAMIC for thoughtfully designed essentials, dependable quality and customer-focused service.
