Custom Square Mailer Boxes

Your Ultimate Heavy-Duty Square Mailer Boxes for Brand-Centric Packaging. Crafted from rigid, archival-quality 3mm chipboard, these square boxes withstand rigorous shipping while showcasing your logo and designs in crisp detail. Perfect for e-commerce brands, subscription services, or luxury gifting.
 
Key Features:
10-Piece Minimum Order: Affordable customisation for startups & small batches
Double-Wall Construction: Crush-resistant, 300+ lbs compression strength
Customisation Options:
✔ Full-Color Logo Printing (CMYK/Pantone®)
✔ Matte/Gloss Lamination & Foil Stamping (50pcs+)
✔ White/Kraft Paper Surfaces (FSC-certified)
Sizes Available:
10cm*10cm*4cm, 15cm*15cm*5cm，20cm*20cm*5cm，25cm*25cm*5cm，30cm*30cm*6cm, 35cm*35cm*6cm, 40cm*40cm*6cm(Custom sizes on request)

✓ Tear-Resistant Edges: Reinforced corners prevent split seams
✓ Print-Ready Templates: Free Adobe Illustrator files for precise logo alignment
✓ Platform-Ready: Amazon ISTA-3A compliant, Shopify/Etsy-friendly sizing
✓ Zero Tooling Fees: Digital printing setup included