Posturemax Premium Task Chairs 24 include many features offering benefits for long term spinal health. Offering exceptional comfort this task chair incorporates unique body supporting technology and optimum adjustability, both of which work to reduce the likelihood of back problems associated with long periods spent sitting down. It is upholstered with a heat reactive memory foam which will mould specifically to cradle your body for additonal health benefits. Features include - memory foam seat and back, synchronised mechanism plus independent back angle adjustment, seat depth adjustment, inflatable lumbar, easy lift back height adjustment, side tension adjuster and is guaranteed for 24 hour usage and with a weight tolerance of 150 kilos (23.5 Stone). It is available with and without arms and also with multi adjustable headrest and comes as standard with a black base. Optional extras are Polished Aluminium Base, Extra Large Seat (+60mm wide +30mm depth), Coccyx Cut Out (approx 90mm wide x 130mm from back edge of seat).