Dimensions: These self-locking shipping boxes' outer size is 6x4x4 inches and inner size is 5.6x3.9x3.9 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 white 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 White Boxes: Small shipping boxes in white 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. 1. Quality Corrugated Paper： Three-layer structure of premium corrugated shipping boxes, no burrs or gaps.
2. Precise Opening： Easy to Assemble and make it more stable.
3. DIY boxes： White appearance, perfect for attaching your labels.
4. Flat Storage： Save your storage space for easy access when you need it.

ZBEIVAN has been focusing on the design and production of shipping boxes for many years, constantly improving our products and providing customers with the best quality service.

E-flute corrugated boxes combine beauty and strength and are mostly used for retail and mailing purposes. The special flute structure of corrugated cardboard makes it durable during transportation.

Available in various sizes：
6X4X4，7X5X4，8X6X4，9X6X3，6X6X6，10X7X5，11X6X6