All of our office chairs are available in store assembled or in-box. They are all fitted with standard ergonomic adjustments such as height control and tension control. Select few of our office chairs are fully ergonomic which means almost everything on the chair can be adjusted, such as lumbar support, arm height and arm pivot. Visit us in-store and we will help you find the most comfortable office chair for you. We also have a large variety of used office chairs in our showroom as well.