The curved contours are designed to give optimal lumbar support and to support your body while keeping your spine properly aligned.Advanced Design :1 Back angle adjustment, :2 Adjustable headrest :3 Integral lumbar support and height :4 Adjustable cushioned arms give extra relaxation The back support is designed according to human spine structure, providing neck, shoulder, waist and coccyx protection for long hour sitting Functionality Office Chair: Fully adjustable height with a 360-degree swivel offer a versatile range of motion. This is brand new quality office chair,is strong lovely chair,is a so strong and affordable,we are doing home delivery and we can do waybill to other states :Payment on delivery nationwide : Price 140,000 Dm,call or Whatsapp us on for more inquiry's