Desks and chairs refer to furniture used by students for class, a type of desk and chair that can also be called student desks and chairs, or school desks and chairs. Desks and chairs can be categorized by age, material, and function. In modern production, there are adjustable desks and chairs that can be adjusted in height. The height of the desk can be regulated by moving the legs between sliding axes with relevant fasteners, thereby adjusting the height of the desk to meet the needs of schools and students. They are composed of cold-rolled steel and fire-retardant panels, with plastic caps protecting the parts that connect to the ground.