The recline can be adjusted in 8 steps and the seat height can be adjusted in 3 steps. -material: Structural members Seat and back: Metal (steel) Elbows and legs: Rubber wood upholstery: Polyester cushioning material: Urethane foam Polyester wadding surface treatment Elbows and legs: Urethane resin coating -size: Width 59 cm × Depth 62 cm ~ Maximum 104 cm × Height 81 cm ~ 101 cm Seat height (3 levels) 35 cm, 39 cm, 43 cm