This office chair is designed so that it fits in with the natural shape of your back, providing good lower-back support during long work or study sessions. Ventilated back cushion and firm foam cushion ensures one remains cool throughout the day and comfortable. It is very stable with a solid metal bottom that can match the industry standards and therefore the chair remains stable, durable and functional at home or in the office. The chair is PU wheeled, 360 degree swivel base, therefore moves quietly and easily, and will not scratch your floors. It is simple to install: all the instruments and instructions to assemble the chair are included, and it can be completed within 10-15 minutes.