In order to use stacked boxes as packaging, we have adopted a double lid composed of an upper lid and inner lids that opens from the center outward. By adopting this method, the three-tier box can be stably hold to protect the contents. Also, the process of opening the inner lid to the left and right is easy to do, and builds up anticipation. Each stage of the box is designed to t inside the left and right inner lids, and the appearance of the display on the shop oor is carefully considered.