Works perfectly. We are moving and simply can’t take it with us. Must pick up in LaCosta Carlsbad Encinitas. From the manufacturer: This Hyken black technical mesh task chair features a headrest and built-in lumbar support. Prepare for long days at the office with this Hyken technical task chair. Mesh construction keeps you cool by allowing air to circulate between the chair and your body, while the built-in lumbar support offers extra comfort. Adjustable tilt tension and tilt lock let you find an ideal seating angle, and height adjustment options make it easy to select the proper configuration for your desk. Each arm adjusts height to create a comfortable place for resting in between tasks. Featuring a sleek, modern design, this Hyken technical task chair makes a handsome addition to any contemporary office setup. Task chair is a smart addition to any office space Black mesh upholstery allows air to circulate This chair provides lumbar and head support Overall dimensions: 45.3 - 49.8"H x 27.2"W x 27.3"D Seat dimensions: 19.3"W x 16.5"D Back dimensions: 16.2"W x 23.2"H Height-adjustable arms for supporting your forearms Multi-tilter with adjustable tension control for comfort Maximize your seated position with changeable height and tilt and adjustable arms and lumbar support This chair can safely support a user who weighs up to 275 lbs. for a full work day Assembly required Meets or exceeds ANSI/BIFMA standards