The primary function of public tables and chairs is to meet the rest and work needs of citizens and tourists. They are usually designed reasonably, taking into account ergonomics, to ensure comfort even during long-term use. The materials of public tables and chairs are diverse, including wood, metal, plastic, etc. Wooden tables and chairs usually have good durability and aesthetics, while metal and plastic materials are lighter and easier to clean. In terms of structural design, public tables and chairs are mostly fixed or adjustable in height to meet the needs of different groups of people. Some high-end public places also use environmentally friendly materials for tables and chairs to reduce their impact on the environment.