Features: 1) Luxurious black cow leather covers all seating areas 2) Nailless soft padded armrests add more comfort for your working days, applying nailless smoothing technique 3) Gas lift height adjustment and lean forward or tilt back and tilt lock features add versatility 4) Layered foam construction on back cushion is designed to provide adequate lumbar support 5) Large black nylon 5-star base with dual wheel castors provides smooth and easy movement on the floor