310 x 220 x 50mm Heavy Duty Brown Corrugated Die Cut Mailing Box

Slim, sturdy, and cleanly finished, our 310 x 220 x 50mm Heavy Duty Brown Corrugated Die Cut Mailing Box are the perfect choice for shipping or presenting lightweight rectangular items such as books, stationery sets, tech accessories, and cosmetic kits. Whether you're packing online orders or creating a premium unboxing experience, these boxes combine functionality with visual appeal. Constructed from strong single-wall corrugated cardboard, they provide reliable protection while remaining lightweight to help minimize shipping costs. The self-locking die cut design ensures easy, tape-free assembly and secure closure—ideal for busy packing stations. Their crisp white exterior delivers a professional look and is easily customized with your branding. Delivered flat-packed for convenient storage and streamlined fulfillment, these boxes are also fully recyclable and made from responsibly sourced materials, supporting sustainable packaging practices. Key Features Dimensions – 310 x 220 x 50mm, ideal for books, kits, accessories, and a wide range of retail items HEAVY DUTY Construction – Strong and sturdy corrugated cardboard provides enhanced durability and reliable protection during shipping Brown Kraft Finish – Natural brown corrugated finish with a clean, professional appearance Self-Locking Die Cut Design – Fast, easy, tape-free assembly with a secure closure Eco-Friendly – Recyclable corrugated cardboard made from responsibly sourced materials Flat-Packed – Space-saving design for efficient storage, transportation, and shipping logistics