Multifunction mechanism allows back angle adjustment relative to seat, adjustable tilt (free floating or infinite locking positions) and forward tilt. Waterfall seat edge reduces pressure at the back of knees. Padded slant T-arms are height- and width-adjustable. Impact-resistant molded plastic shell. Five-star base with casters for easy mobility. Recommended Applications: General Office & Task; Seat/Back Color: Black; Features & Functions: Asynchronous Control; Back Height Adjustment; Pneumatic Seat Height Adjustment; Seat Glide Mechanism; Tilt Tension/Tilt Lock.