Dimensions: These self-locking shipping boxes' outer size is 6x4x1 inches and inner size is 5.6x3.9x0.9 inches.
Sturdy Material: Three-layer and double-bottom plate mailer boxes, great cushioning properties, and structural strength. The perfect choice of shipping boxes for small businesses or retail sellers.
Quick Assemble: The black cardboard boxes can be assembled quickly in seconds without glue, tape, or staples, and the special design of the semi-circular cutout makes it easy to open.
Matte Black Boxes: Small shipping boxes in Black appearance for easy writing and labeling. Ideal for DIY a unique box of yourself, making it special in your carrier, or packing it as a gift box.
Widespread Application： The E flute cardboard cartons are lightweight, and intensive flutes make them also durable. Widely used in mailing, packaging, and storing small items.
