Magtec Mid-Back Office Chair with Breathable Mesh, Flip-Up Nylon Arms, Double Functional Mechanism, Black Breathable Mesh Flip-Up Nylon Arms Double Functional Mechanism 100 mm (3.94 inch) Level Three Nylon Gas lift 350 mm (13.78 inch) Chrome Base Nylon Casters Chair height 38.98 - 42.52-Inch, Height seat to ground 20.47-24.02-Inch