Manager's matrex back gives the right amount of flex combined with adjustable lumbar support and mesh fabric seat providing you with perfect comfort. Chair Type: Managers. Backrest Dimensions: 22 1/2" W x 25 3/4" H. Color: Black. Material: Mesh. Weight Capacity: 250 lbs.. Seat Dimensions: 20" W x 19 1/2" D. Overall Dimensions: 27 1/4" W x 25 3/4" x 46 1/4" H. One-touch pneumatic seat height adjustment from 18 1/2" to 22 1/2". 2-to1 synchro-tilt control with adjustable tilt tension. Height-adjustable arms with soft polyurethane pads. Gun-metal finish aluminum base with oversized dual-wheel carpet casters. Arms maximum inside: 19". Arms-to-floor minimum: 25"