To-Strike 9248 office swivel chair, with 4D-adjustable armrests, black, with headrest. High upholstered backrest with integrated lumbar support. 4D-adjustable armrests with PU pads. Ergonomically upholstered seat with depth adjustment. Synchronised mechanism can be locked in 3 positions. Infinitely variable spring force adjustment. This chair is supplied disassembled and is quick and easy to assemble. It has a high, upholstered backrest with integrated lumbar support for optimum alignment of the spine. The 4D-adjustable armrests with PU upholstery offer increased comfort and can be customised to suit the user's individual preferences. The ergonomically designed seat with depth adjustment enables a personalised sitting experience. The synchronised mechanism, which can be locked in 3 positions, together with the infinitely variable adjustment of the spring force, enables the chair to provide a customised and dynamic sitting experience that adapts seamlessly to your movements and weight. TrendOffice is designed with your well-being in mind. Rated good (2.0) by Stiftung Warentest in September 2021. Disassembled delivery - easy assembly. TrendOffice is a company of the Dauphin HumanDesign Group.