DimensionsOverall: H39 1/2 W25 1/2 D29-30 3/4 Seat H20 Arm H26Inside: Seat H20 W19 1/2 D18-19 1/2Arm H26Back: H23 1/2 W17 FinishesN/AFeaturesArms: "T"Mechanism: Synchronized with Torsion ControlBack Ht. Adjust: Finger-Tip ControlSeat & Back Angle Adjust: Left Hand Lever, Free Float, Lock In Any Position, 2:1 RatioSliding SeatUpholstered Outside BackAdjustable Spring-Steel LumbarB