This great little Student Portable Compound Microscope comes equipped with a built-in LED light that can be powered by either three AA batteries (not included) or wall outlet. It features a 45-degree inclined swiveling monocular head with locked-in eyepiece, full optical glass elements, and solid metal body. There are three magnifications: 40x, 100x, and 400x, making it an excellent instrument for elementary and middle school students, or for a home-school or family microscope. Overall dimensions are 4.5″ wide, 7″ front-to-back, and 12″ high. This is the perfect beginning microscope for a budding scientist!