The product was designed for the establishment of 30 years of the enterprise. The designer combined the product with the Chinese calendar. In China, a Calendar is an indispensable tool in daily life and work. They tear off a page every day to represent the arrival of a new day. Instead, the designer "save" calendars from 30 years ago on the packaging. The purpose is to let consumers know that the enterprise has 30 years of historical experience, they offer 30 years of classic quality.