This 3D office chair model consists of a seat, a backrest, armrests, and a base with wheels. The height and tilt of the seat can be adjusted, as well as the height and angle of the backrest. The armrests are attached to the seat and can be adjusted for height and width. The base of the chair is typically made of metal and has five legs with wheels for easy movement. The wheels are usually made of plastic or rubber and can be locked in place to prevent the chair from rolling. This model is composed of two combinations that need to be separated for use.