Black 12x9x4 Shipping Boxes Set of 25, Corrugated Cardboard Mailer Boxes for Small Business Shipping, for Modern Business Packaging, Mailing, and Storage

This set of 25 black shipping boxes (12x9x4 inches, internal 11.6x8.9x3.9 inches) is made of triple-layer corrugated paper, resists deformation, and holds small items securely. Easy to assemble without glue—just fold, insert panels, and seal with a clear sticker. Flatten for storage. Ideal for shipping books, clothes, DVDs, and perfect for small business packaging, mailing, and storage

• Ample Quantity: This set includes 25 black shipping boxes, making it effortless to organize different kinds of items for your daily storage needs
• Dimensions: Each shipping box measures 12 x 9 x 4 inches externally, with an internal size of 11.6 x 8.9 x 3.9 inches
• Material: Made of triple-layer thickened corrugated paper, these 12x9x4 shipping boxes are not easily deformed during daily use and can hold various small items
• Easy to Assemble: No glue is needed. Simply fold along the creases, insert the panels, and seal the closure with a clear round sticker. The mailer boxes can be flattened for storage when not in use, saving space
• Versatile Use: These black boxes are suitable for shipping photo frames, books, clothing, crafts, DVDs, and more. Ideal for small business shipping, packaging, mailing, and storage purposes
• Warm reminder: After assembly is complete, please seal the closure with a clear round sticker.