This great little Student Portable Compound Microscope comes equipped with a built-in LED light that can be powered by either three AA batteries 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 objective lenses: 4x, 10x, and 40x, making it an excellent instrument for elementary and middle school students, or for a home-school or family microscope. THREE eyepieces included are 10x, 16x, and 25x, taking the maximum magnification up to 1000x. Multiply the eyepiece magnification by the objective lens magnification to see the available powers. Overall dimensions are 4.5″ wide, 7″ front-to-back, and 12″ high. This is the perfect beginning microscope for a budding scientist!