Headrest for Herman Miller Classic Aeron Chair, Adjustable Height. It fits sizes A, B and C, and only that chair. It will not fit the Aeron Remastered, other Herman Miller models or other office chairs. It is a Classic if bought new before late 2016, with an even mesh weave and a joint with exposed screws behind the seat. Remastered chairs have zoned mesh, a smooth triangular joint and often two lower-back pads. The hinge locks in place without rattling, so it stays put through long workdays at your desk. A removable coat hanger on the back keeps your jacket off the floor and wrinkle-free. No drilling and no permanent changes to your chair. Designed in New York, USA, and protected by US. California Prop 65 Warning. Visit Our Store?