The silver mailing box has a fully unfolded lid, and the box has smooth lines and a metallic luster on the surface, showing a simple and elegant style. The box body is a regular rectangular block with sharp corners, continuing the simple and elegant classic design of the airplane box. This type of packaging is often used in the fields of cosmetics, accessories, etc. The unfolded structure is as stable as an airplane wing, which can effectively buffer transportation vibrations and improve the product grade through a simple appearance, perfectly balancing practicality and visual beauty.