Remanufactured: Original Herman Miller Aeron chair expertly remanufactured. Fully Customizable: Build the perfect chair for you. All-Day Comfort: Sit pain-free for extended periods. Ergonomic Design: Fully adjustable to support your productivity and well-being. High-Quality Parts: New casters, arm pads, gas cylinder, lumbar, under seat foam, arm components, and mechanism cover. Sustainable: Eco-friendly, sustainable remanufacturing process. 12-Year Warranty: Comprehensive coverage for lasting peace of mind. Risk-Free Trial: 30-day no-hassle returns with a pre-paid label and full refund.