This ergonomic low back black mesh task chair has a strong plastic armrest, chrome-plated metal base. This Office Mesh Chair has an extremely comfortable nylon mesh back that supports back it is specifically designed for the hardworking professional in the office. This office mesh desk task chair keeping you cool no matter how high the pressure gets. It has no rocking function, very easy to install and everyone can use it very easily. This gives yourself the ability to easily glide over carpeted floors while naturally performing tasks without exertion.