Topstar synchronous mechanism, with arm rests, synchronous mechanism, with arm rests, grey

SOFT SITNESS Art G office swivel chair, synchronous mechanism, with arm rests, grey. Supplied = partially assembled. Model = upholstered back rest. Seat colour = grey. Fittings = lumbar support. Frame colour = black. Frame material = plastic. Seat mechanism = synchronous mechanism with weight adjustment, 3D Sitness seat joint. Frame design = with castors. Seat height = 440 - 520 mm. Type of arm rests = with arm rests. Back rest height = 560 mm. Seat depth = 460 mm. Seat width = 440 mm. Shape of seat shell = contoured seat. Conforms to = EN 1335 parts 1 - 3, GS tested. Seat material = polyester. Design of castors = castors for soft floors. Max. load = 110 kg. Period of use/day = up to 8 hours. Product type = office swivel chairs. Customs tariff number = 94013900. Country of origin = DEU. Gross weight = 15.3 kg. Weight = 13.6 kg. Moving seat due to Soft Sitness® technology. 100% recyclable - owing to the use of single grade plastics. Infinite seat height adjustment. Mesh back rest with new padding technology and with height adjustable lumbar support. Including arm rests with an adjustable height and width with soft padding. The unique Soft Sitness® technology ensures three dimensional sitting and therefore keeps you in motion, even when seated. The freedom of movement in every direction provides more active experience when seated, allowing you to train your spinal muscles without realising it, and thereby prevent back pain. Two spring loaded braces under the seat make a slight forwards, backwards and even sideways swaying motion possible. Mesh back rest with new padding technology without any visible screws, with height adjustable lumbar support. Self-regulating synchronous mechanism made of fibreglass reinforced plastic. Automatic, body weight dependent spring force setting, locks in frontmost position. The elegant black plastic five star base is equipped with load dependent braked double safety castors for carpeted floors. The advantages of Soft Sitness®: - Trains back and spine - Takes pressure off the intervertebral discs - Guaranteed freedom of movement - Invigorates the circulatory system - Improves the ability to concentrate - Improves performance