The stylish and durable Bush Business Furniture 400 Series High Back Multifunction Mesh Executive Office Chair provides all the adjustable features you need without the high-end price tag. Four easy-to-use levers instantly set the angle of the seat and back as well as the height and depth of the seat to accommodate all users. A tension knob located underneath the seat turns to adjust the rate and ease of recline to give the desk chair a more personalized feel. The contoured backrest includes cushioned lumbar support and can easily be raised or lowered to meet your own ergonomic preferences. The high back design limits strain on the upper back, shoulders and neck for long-lasting support whether you're putting in a full day at the office or just browsing the web. Four-way adjustable armrests allow you to find the right height, width, depth and angle to comfortably take on your next project or assignment. Five dual-wheeled casters and 360 degree swivel control provide complete range of motion throughout your workspace to encourage movement and collaboration. The heavy duty nylon base withstands years of use with a weight capacity of 275 pounds. Both the seat and back feature lightweight, breathable mesh upholstery for a modern look that works well in home and professional offices. This commercial-grade Ergonomic Office Chair is tested to meet ANSI/BIFMA quality standards for safety and performance and is backed by the Bush Business Furniture 5 Year Manufacturer's Warranty.