Upgrade your packaging with our extra-thick kraft square mailer boxes, designed for both strength and style. Featuring a tall square structure, these boxes offer more depth and space — ideal for gift packaging, e-commerce shipping, or bulky products like clothing, accessories, and home goods.
Made from reinforced corrugated kraft board, these boxes are highly durable and perfect for protecting valuable items during transit. The clean, natural kraft finish provides an eco-friendly and minimalist look, and can be customized with your logo, brand color, or unique design.
Whether you're packing gifts, apparel, or subscription items, this heavy-duty box delivers both protection and presentation in one smart design.
| Material | Extra-thick Corrugated Kraft Board (3 or 5 layers) | | Box Style | Square Mailer Box / Tuck Top / Self-Locking Flap | | Thickness | 1mm–5mm (Customizable for heavy-duty use) | | Lead time | 10~15 Working Days | | Certificate | ISO9001/FSC/BSCI/German Rhine certification | | Printing | CMYK printing / PNTONE | | Design Format | AI, PDF, CDR, PSD | | Surface Finishing | embossing / debossing / gloss lamination / matte lamination / gold foil stamping /Spot UV | | Design | Customer's Specific Requirement | | Finishing | Golding/Silver Hot Stamping etc | |
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About our factory
We are a professional packaging manufacturer with over 10 years of experience, specializing in custom kraft paper boxes, corrugated mailer boxes, gift boxes, and paper bags. Located in China, our factory integrates design, printing, die-cutting, surface finishing, and assembly under one roof, providing one-stop OEM & ODM packaging solutions.
Our core strengths include:
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Heavy-duty kraft packaging for apparel, cosmetics, jewelry, gifts, and e-commerce
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Customized sizes, structures, and finishes – from tear strips to magnetic closures
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Strict quality control at every production stage to ensure consistency and durability
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QR code security code printing
Cosmetic boxes, soap aromatherapy boxes, toothpaste and toothbrush boxes, power banks, clothing and jewelry boxes, etc.
Carton Forming Machine
Gift Box
Paper Bags Gift Bags
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