Ergonomic design combines with high performance functions for all-day comfort. Multi-function mechanism allows back angle adjustment relative to seat, adjustable 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. Multifunction mechanism allows back angle adjustment relative to seat, adjustable and forward tilt Includes: Wrigley Series 24/7 High Performance High-Back Multi-Function Task Chair – Black – ALEHPT4101.