Genuine Herman Miller Aeron Remastered 5-Star Base. Upgrade or repair your chair with this original, high-end component. It is brand new, never installed, and features the premium Satin Aluminum finish (standard on the Mineral Aeron colorway). Compatibility: Fits all Aeron Remastered chairs (2016-Present). Premium Build: Heavy-duty aluminum construction (superior to standard plastic bases). Finish: Satin Aluminum – a beautiful, semi-matte metallic grey. Ready to Install: Fits standard gas cylinders and 2.5 casters. Note: This listing is for the 5-star base only. Gas cylinder and wheels are not included.