Alpha Mid Back Office Chair with Arm Colour:Black It features a single motor

It features a single motor and a heavy duty shaft drive and gearbox mechanism designed around reliability and quietness in operation

Desktop Size: 1800mm x 750mm - Overall Size: 3600mm x 900mm

WITHOUT ARM

soft luxurious soft seat and back cushions over a heavy-duty internal frame and light wood grain solid pine tapered post legs

Alpha Mid Back Office Chair with Arm Colour:Black It features a single motorFeatures: Fully ergonomic chair with heavy duty 4 Lever mechanism Seat depth adjustment with seat slider Ratchet back height adjustment High density seat & back foam Gas height adjustment High back available in Black & Blue only Medium back available in Black only Dimensions: Seat Height: 450 580 Seat Width: 480 Seat Depth: 460 505 Back Height: 420