Waleaf Big and Tall Executive Office Chair with Flip-up Arms for Adult, Ergonomic High Back Adjustable Lumbar Support Computer Desk Chair

High Back & Ergonomic Design: The ergonomic high seat back is designed to fit your back and provide excellent lumbar support, plus the padded seat cushion gives you comfort. Refuse to be bothered by back injuries caused by sedentary behavior. Flip-up Arms & Space Saving: Flip-up armrests can be switched between with and without armrests at will, provide arm support when in use, and can be flipped when not in use, effectively saving space. Multifunctional Mechanism & Stability: The chair height of this 360° swivel computer chair can be easily adjusted by mechanism with a lift height of 3.5 inches. In addition, the metal five-star feet on the bottom of the chair are more stable, and the mechanism also has a rocking function(90°-110°) to help you relax from your heavy workload. Super Easy to Assemble: The 400lbs chair comes with clear instructions and the required installation tools, and in most cases can be installed by one person in less than 20 minutes! Satisfied After-Sales Service: We have an excellent customer service team that will respond to all your questions within 24 hours! If there is any problem with the home office desk chair, please contact us directly and our team will provide you with satisfactory solutions!