Model Box improves the bottom structure of the carton, uses cardboard stacking to improve the "load-bearing capacity" of the carton, effectively prevents collision and deformation during transportation, and uses a snap-on sealing box on the upper cover, the design concept of the buckle comes from the "mortise and tenon" structure, so that the carton can be used repeatedly, and according to the different needs of the market, the carton area of seven sizes is divided into A5, A4 and A3, the three most conventional areas, and provides three different height options, namely 9 cm, 18 cm and 36 cm, using S, M and L are used as markers of different heights, and cartons are also customized according to customer needs to achieve green packaging.