Takeaway catering industry is very popular nowadays. Meanwhile, a more serious white pollution is coming. Althought the material of many lunch boxes can be recycled, people will still pack their lunch boxes with disposable plastic bag which is non-recyclable. In order to reduce the use of plastic bags, there are two gaps in the edge of the lunch box which can be ripped easily to form two handles. Such a solution is simple, and no more cost is added to the manufacturing process, which can quickly spread to the market.