Easy to install - Gaming chair is super easy to be put together. It may take about 10-15minutes, this office chair comes with all the tools necessary. Comfortable lumbar support - Office chair is designed with human-oriented ergonomic construction for providing comfort sitting experience. Under the chair,a tilt-tension knob makes rocking back in your chair easier or harder, depending on which way you turn it.It can rock back and forth. Good Seating - Comfortable for long use! Massage office chair has a vibrator with remote control, slight vibration can reduce the fatigue caused by your long hours of work. 360-Degree Swivel & Nylon Casters - All the parts of office gaming chair pass BIFIMA certification, more reliable and sturdy, this desk chair does include a weight limit of 250 pounds. Warranty - We guarantee you will love this ergonomic gaming chair. But if youre not satisfied with this office chair, please get in touch with us.