Disposable and Single-Use Product Design The Portable Lunch Box by Minghui Lyu The catering industry is flourishing, and takeaway has become a necessity for modern people. At the same time, a lot of garbage has also been generated. Many of the meal boxes used to hold food can be recycled, but the plastic bags used to pack the meal boxes are indeed non-recyclable. In order to reduce the use of plastic bags, the functions of the meal box and plastic are combined to design new lunch boxes. The bale box turns the part of itself into a handle that is easy to carry, and can integrate multiple meal boxes, greatly reducing the use of plastic bags for packing meal boxes.