Ergonomic Design: Streamlined back that fits the spine of the human body that can provide customer with better support, ease customers’ tired in work, protect your lumbar spine better! Improved Filling: In order to offer better experience to customers, we have adopt softer and more elastic sponge to fill the cushion and backrest that can help users feel more comfortable! Multi Function: 360 degrees swivel design cooperates with wheels, rockable backrest and height adjustable seat can help you work much more efficient, you will not waste time on moving chairs anymore! High Quality: The office chair adopts strong metal, solid plastic and waterproof PU leather ensure itself has better bearing capacity(Maximum weight 250lbs)and a longer usage life! Widely Used: It is not only an office chair but also a good furniture for your study room! We believe this product can play an important role in office or home in your daily life!