Covered armrests
Chair armrests can be covered with an extra soft layer, for people with issues making their elbows and forearms sensitive
Gas lifts
Gas lifts of different lengths can be installed in chairs so they are suitable for desks of a variety of heights
Bases
Footrings can be put on the chair for leg support when using the chair at a high desk
Castors
Braked and unbraked castors are available
Foams
Additional memory foam and dacron layers can be added to the seat and back cushion
Coccyx cut out
A cut out can be made at the back of the seat cushion to help relieve the pressure on the coccyx
Inflatable lower back support
An air cell can be inserted in to the backrest to give lower back support for the lumbar region