Out size(L*W*H): 520*500*1040mm , Seat cushion height: 355mm Seat cushion width: 485mm , Seat cushion depth: 490mm Backrest height: 545mm , Backrest width: 485mm Backrest elevation angle: 55-180 , Weight adjustment: 45kg-135kg Horizontal adjustemen: 75mm , single locking Pillow adjustment: 3 lever, Connect size : L/R*F/B: 215*295mm Operating on left hand control