NOTE: To ensure proper assembly, please follow all steps provided in the installation manual (provided in pdf below) ERGONOMIC OFFICE CHAIR - Featuring reliable ergonomic support, Articulate comes with a breathable mesh back, passive lumbar support, and generously padded and contoured 6 thick mesh seat cushion RELIABLE COMFORT - Designed with productivity in mind, Articulate is perfect for everyday use. Sturdy and supportive, this executive office chair holds up to 331 lbs and comes in a variety of colors ADJUSTABLE SEATING - Articulate is a computer chair that easily adjusts to your needs with height adjustable armrests, one-touch chair height adjustment, 360 degree swivel, and a tilt and lock system. Seat: 18 - 22"H OFFICE UPDATE - Refresh your office space with this versatile choice for computer desks and workstations. Enjoy mobility over carpeted or hardwood floors with five dual-wheel casters OFFICE CHAIR MEASUREMENTS - Product Dimensions: 26.5"L x 26"W x 34