Full Review in Amazon.co.uk : http://www.amazon.co.uk/gp/product/B00AZFEDOY?tag=easyjardin0f-21

Topstar Op290ug21xe Open Point Synchro Deluxe Swivel Chair - Multicoloured

Ergonomically shaped backrest and headrest with breathable mesh cover Backrest height adjustable Headrest adjustable in height and angle
Intervertebral discs seat
Point-synchro-mechanism tension individually adjustable to the body weight
Height adjustable U2B armrests
Decorative and solid chromed steel base