Monarch Specialties Mesh/Chrome High-Back Executive Office Chair, Black Certified for commercial use (BIFMA standards) Back and seat upholstered in durable mesh fabric with a thick cushioned seat Ergonomic curved high back rest and padded arm rests for added comfort Convenient lever for adjustable seat height with lock-in/free tilt back mechanism Seat height: 19.5"-23"H; Seat dims: 20"Lx22"Dx28.5"H (back rest); Arms: 10.5"L (9.5L" padded)x2.5"Wx8"H