Ergonomic Design - Racing office chair designed with human-oriented ergonomic construction for providing comfort sitting experience. And most important, locking in any position when you recline, have the safe angle 90-135 degree.Comfortable Seating - Massage office chair have a vibrator with remote control, slight vibration can reduce the fatigue caused by your long hours of work.Easy Assemble - Gaming chair super easy to put together, estimated assembly time in about 20-40mins, office chair came with all the tools necessary.360-Degree Swivel - Racing style chair at the gaming room or at home with this ergonomically-designed, high back computer chair. Lined with soft PU leather that is both oil and water resistant, our chair is both eye-catching and long-lasting.Warranty - Office gaming chair all the parts BIFIMA certification, more reliable and sturdy, this desk chair does include a weight limit of 250 pounds. The seat height can be adjusted from 19.5"-23.2" and the seat measures 21.7"(W)*20.9"(D).