The Herman Miller Aeron Classic Chair size B, expertly renewed by OfficeLogixShop, combines ergonomic support with a commitment to quality. Each chair is meticulously cleaned, with many parts replaced with new components to ensure peak performance and a like-new experience. Suitable for Most People (Size B). Designed in size B, this model fits a wide range of body types, offering balanced support and comfort for most users. Adjustable lumbar pad provides essential lower back support to encourage healthy posture, reducing discomfort during long work hours. Fully loaded with customizable tilt, seat height, and arm adjustments, allowing you to adapt the chair to your personal comfort preferences. Built for stability and durability, the aluminum base provides a refined, modern look suited to any workspace. Designed with breathable mesh to enhance airflow, keeping you cool and comfortable during extended use. Forward tilt : the forward tilt function provides added back support up to 10 degrees even in the position leaning forward position. Rear Tilt lock : tilt lock is excellent for locking the chair in postiion for serious working circumstances and prevent the chair from leaning beyond the 90 degree position. Tension Control: excellent for controlling the chair’s tension and enables the user to perfectly adjust the amount of movement the chair back has when the tilt lock is unlocked.