Backrest, Polypropylene with glass fibre frame. It also
incorporates several splines for better back breathing.Adaptive lumbar support
2D Adjustable arms: Height and width adjustment. Available in
3D Adjustable arms: Height and width adjustment. 360Âº Swivel
armrest movement. Available in aluminum.Gas lift
Auto-weight synchro control mechanism. 4 back tilt positions structure. 5 star base. Die cast aluminum or polyamide base with glass fibre.