• Ergonomic backrest and padded armrests for enhanced sitting comfort• Adjust the backrest smoothly through rocking tension control (tight & loose)• Thickened seat cushion is crafted from premium PU leather and high-density sponge• Lifting lever (up & down) are under the seat for flexible height adjustment• Flip down to support your arms flip up to save space• Robust 5-claw metal base ensures reliable support and long-lasting use• Smooth rolling casters make it easy to move around your workspace• This swivel task chair is perfect for home and office• Assembly needed