Features & details ❤Easy to install - Gaming chair super easy to put together. It took maybe 10-15minutes, this office chair came with all the tools necessary. ❤Soft and Comfort - Comfortable long use! The ergonomic racing chair is covered with breathable high-quality PU leather to ensure long-term competition or work without discomfort. ❤Good lumbar support - Office chair designed with human-oriented ergonomic construction for providing comfort sitting experience. Under the chair, a tilt-tension knob makes it easier or harder to rock back in your chair, depending on which way you turn the knob. has rocked back and forth. ❤360-Degree Swivel & Nylon Casters - Office gaming chair all the parts BIFIMA certification, more reliable and sturdy, this desk chair does include a weight limit of 250 pounds.