A magnifying glass is a simple optical instrument that uses a convex lens to enlarge the appearance of objects. It consists of a handle and a circular lens, which helps to focus light and make small details more visible. Magnifying glasses are commonly used in various fields, including science, art, and everyday tasks like reading small print. These tools are often employed by jewelers to examine intricate designs, by scientists for studying specimens, and by students for reading fine text. They are also popular among hobbyists and collectors who want to inspect items closely without the need for complex equipment.