Leather Office Chair Ergonomic Computer Desk Chair with Flip-up Armrests Rocking Function-Black

. 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