Magtec Mid-Back Office Chair with Breathable Mesh, Flip-Up Nylon Arms, Tilt Mechanism, Black Breathable Mesh Flip-Up Nylon Arms Tilt Mechanism 100 mm (3.94 Inch) Level Three Nylon Gas lift 350 mm (13.78 Inch) Chrome Base Nylon Casters Chair height 39.37-42.92-Inch, Height seat to ground 19.69-23.23-Inch