HIGH-QUALITY MATERIALS AND COMFORT: The office chair with armrest is covered with high-quality PU Leather -- cat scratch leather, which has a smooth surface, excellent tactile feel, good breathability, and is waterproof and wear-resistant. The combination of walnut curved panels and cushion introduces a new concept in office chairs. The double-layered backrest and seat cushion, filled with high-density virgin foam, have a thickness of 3.9 inches, significantly enhancing comfort and durability ROCKING FUNCTION & SWIVEL 360°: The office desk chair a 360° swivel and rocking function. Pull out the locking lever for gentle tilting, creating a comfortable work or leisure experience. With adjustable height from 20.9 to 24.0 in and an easy-to-use tilt tension control knob, find your ideal position within a 90-120° rocking range. This ergonomic chair promotes relaxation and stress relief after a busy day TASK CHAIR DIMENSIONS: Seat Size: W24.2 in x D16.5 in x H20.9-24.0 in; Back Size: