A height adjustment mechanism is a system that allows users to change the height of an object, such as a chair or desk, to suit their needs. This mechanism can be manual, using levers or knobs, or automatic, utilizing electric motors. It is commonly found in ergonomic furniture to promote comfort and proper posture. These mechanisms are essential in various settings, including offices and homes, as they accommodate different user heights and preferences. By enabling easy adjustments, they help reduce strain and improve overall productivity, making them a valuable feature in modern design.