Designed to meet your comfort, this Logic High Back Task Chair features a resilient, molded foam, waterfall seat to promote proper ergonomic seating for good health. Ratchet-back lumbar adjustment provides enhanced back support. Infinite, back-angle adjustment with tilt lock allows you to personalize the angle for comfortable, all-day sitting. Pneumatic-cylinder height adjustment lets you customize height for an optimal experience. Chair also features multifunction mechanisms, center knob tension adjustment, 6-degree forward tilt and 360-degree swivel. Sit in a relaxed, comfortable position using height-adjustable arms. Five-star base with casters provides smooth mobility. Chair is Greenguard certified to produce low chemical emissions. Maximum weight limit is 300 lb.