Elegant white or black acrylic shells cradle the most stylish of executive chairs the Xenon. The shell swoops down from the generously proportioned backrest to integral slim, shaped, arms which fold around to the underside of the seat shell. A high quality knee tilt ensures maximum comfort and avoids discomfort through upper leg blood vessel constriction. High density moulded foams and an integral contoured lumbar support add to the easy-seating package. A brushed aluminium five star base continues the focus on sophisticated styling at ground level. In chemistry Xenon is a member of the noble gas family in seating it is a member of the style and comfort family. Quality knee tilt mechanism with tilt tension High density moulded foam seat and backrest One piece seat, backrest and arms Integral contoured lumbar support Nylon fixed armrests Brushed aluminium 5 star base