Office chairs for all your needs! Whether you’re looking for a basic office chair or an ergonomic office chair, find the one that best suits your needs. For example, computer chairs, ergonomic chairs and task chairs will all offer options such as your basic up/down pneumatic control, with a tilt control mechanism and adjustable arms or a multi-function mechanism consisting of up/down pneumatic control, forward tilt, seat angle, seat slider, back angle and adjustable arms.