This office chair features a sleek, ergonomic design that's sure to give you plenty of lumbar support as you work. It has a metal and plastic frame with breathable mesh panels over the seat and back. The frame rests on five caster wheels for easy movement over a variety of floor types. Fixed armrests provide extra relief to your shoulders and neck, and it's designed to keep you comfortable for up to eight hours. This task chair also includes a height-adjustable seat, a swivel function, and a 90-to-120° tilt mechanism to suit your home office needs.