High-quality reflective surfaces made of polished glass, mirrors allow for fast visual inspection of surface features. Certain models are available with long handles for easy inspection of hidden or otherwise hard-to-see areas such as under workspaces or above cabinetry, and smaller models are widely used in medical professions for internal inspection of the human body in places where line of sight can be difficult or impossible to establish. Mirrors are made of durable materials and are easy to clean.