Mayline UL330MBLK Ultimo 300 Mid-Back Task Chair with Arms, Black Leather The Series 300 Mid-Back with Synchro-Tilt has the same features as UL350H but with a 2-to-1 synchro-tilt control It has an adjustable height and width, and padded leather armrests The Seat Height is 19 1/2" at its lowest point and 22 1/2" at its highest 2-to-1 synchro-tilt control adjusts back and seat angles simultaneously Padded leather loop armrests are height and width-adjustable for a custom fit Deep cushions with sculpted padding and luxurious leather upholstery Five-star base has casters for easy mobility Casters supplied with this chair are not suitable for all floor types