Condition: New Shipping: 1 to 2 Business Days Title: Arm Index Replacement Part Herman Miller Classic Aeron Chair 1 Year Guarantee Description: Herman Miller Classic Aeron replacement part with a 1-year guarantee. Restore function to your office chair's arm with this durable arm index replacement. Ensure smoother adjustability and extend the lifespan of your valuable ergonomic furniture. Shop now for a reliable solution. Returns: 365-Day Guarantee is included with This 3d printed product