Designed to last in the busy office with smart ergonomic features for optimal comfort. Multifunction mechanism allows back angle adjustment relative to seat and adjustable tilt. Waterfall seat edge reduces pressure at the back of knees. Impact-resistant molded plastic shell. Padded slant T-arms are height- and width-adjustable. Durable fabric upholstery is tested for longevity and resists fading. Five-star base with casters for easy mobility. Multifunction mechanism allows back angle adjustment relative to seat and adjustable tilt/lock (free float or infinite locking positions) Five-star base with casters for easy mobility Ratcheting back adjustment for back/spine support Includes: Wrigley Series 275 lbs. CAP HP High-Back MF Task Chair – BLK – HPM4101.