Handheld magnifying glasses are usually made of plastic or metal materials, with a simple and elegant shell design that conforms to ergonomic principles and provides a comfortable grip. Its lenses are mostly circular or elliptical, with a smooth and transparent surface and excellent magnification effect. At the same time, the handheld magnifying glass is also equipped with a foldable or retractable bracket, making it convenient for users to adjust the viewing angle and height according to their needs.