Op package refers to a single project. Op is the abbreviation of "OnePiece", which means "single item". In the catering industry, "op package" usually refers to a specific package combination, such as hamburgers, French fries, drinks and so on. In the service industry, "op Package" mainly meets the different needs of customers and provides personalized services. For example, beauty salons can design "op packages" suitable for customers according to their needs and preferences, so as to attract more customers. Therefore, the op package means a single item.