The task chair is available in various versions, with 4 legs, with a sled, on a swivel base with spokes or on a swivel base with castors. It can be fixed height or fitted with a gas lift with or without adjustment mechanisms for the backrest and seat. It is possible to equip the chairs with fixed or adjustable armrests, while on some versions they are either not present or are structural. Available in various fabric categories and colours, the office chair can be in polypropylene, with padded seat and mesh backrest or with upholstered seat and backrest. Various additional elements such as headrest, clothes hanger or lumbar support are available.