For users between 225-400 lb. Extended high back (extra tall), wider and deeper seat with weight sensing synchronized tilter that automatically adjusts the reclining tilt-tension for each user’s individual weight. Ratchet style back/lumbar height adjustment with 5-1/4" of vertical travel. Side activated sliding seat depth adjustment. Multiple position tilt-lock control. Height and width adjustable “T” arms with urethane adjustable arms. Mock-leather upholstery. Black.