Pivoting Arm Index Replacement for Herman Miller Aeron – Black Adjustment Index Insert – Restores Arm Lock Function – Durable Replacement Part

["COMPATIBLE WITH AERON CHAIRS Designed as a replacement pivoting arm index for Herman Miller Aeron chairs. Restores proper arm adjustment and locking function.","FIX LOOSE OR SLIPPING ARMS Perfect solution if your chair arms won’t stay in place or feel worn out. Brings back stable and secure positioning.","DURABLE, HIGH-QUALITY BUILD Made from strong, wear-resistant materials for long-lasting performance under daily use.","COST-EFFECTIVE REPAIR Avoid expensive chair replacements or repairs. Extend the life of your Aeron chair with this affordable replacement part.","Proudly Made in the USA!"]