Black Corrugated Square Mailer box -10.5×10.5×4.5 Inch

Our Large Matte Black Square Mailer Box is designed for those items that need a little extra breathing room and a lot of style. With a generous 10.5-inch square footprint and a 4.5-inch depth, this box is perfect for bulkier items that still require a “boutique” feel.

The bold matte black exterior provides a striking canvas for your branding or shipping labels, while the sturdy corrugated walls offer maximum durability for heavier shipments. The integrated tuck-tab design creates a seamless, secure closure that is both aesthetically pleasing and structurally sound. Whether you are shipping homeware, larger apparel items, or curated gift hampers, this box delivers on both strength and style.

Product Specifications

• Dimensions: 10.5 x 10.5 x 4.5 Inches

• Material: Heavy-duty corrugated cardboard

• Color: Matte Black (Exterior) / Natural Kraft (Interior)

• Design: Fold-and-tuck assembly (ships flat)

• Ideal for: Mugs, candles, large apparel, curated gift boxes, and homeware.