Furmax Big and Tall Office Desk Chair is the perfect choice for those who need an ergonomic seating solution. It features a larger size seat, back and armrests, thick sponge padded back and seat, and firm lumbar support for all day comfort and support. The adjustable back and seat, tilt mechanism, and pneumatic lift and down function allow you to customize the chair to your sitting preference. The chair also features a 360 swivel with mute casters, making it easy to move around without disturbing others. It is made of sturdy metal arms and five-star legs, and upholstered with high-density sponges and covered by good quality of PU leather surface, offering maximum 400lbs weight capacity and durability. Easy assembly with a clear and straight instruction manual and all the necessary tools and screws included. Enjoy your comfortable and ergonomic seating experience with Furmax Big and Tall Office Desk Chair.