• Ergonomic design for neck, lumbar arm, hip and leg support• Designed with widened and thickened seat cushion for added comfort• Premium PU leather and high-density sponge for supportive seating• Rocking function, adjustable height and swivel seat for various needs• Rocking tension control (tight & loose) and lifting lever (up & down) for convenience• 90° flip-up armrests to save space while providing flexibility• High quality office chair with enduring gas lift for long-lasting use• Heavy-duty 5-claw metal base ensures strength and reliability• Smooth rolling casters allow you to glide effortlessly across your room• Assembly needed