450X microscope: '*stem made for fun: the 450X microscope is an illuminated microscope with 100x, 300x and 450x magnification. *functional: microscope set comes with over 40 pieces. *additional features: made for kids and easy to use, focus and adjust. Comes with three prepared slides, each with three specimens, and including algae, plastic and synthetic fibers. *additional features: also includes blank slides, magnifier, petri dish and more... * dimensions: 6.7" l x 5.9" w x 11.0" h *designed and suitable for ages 6+ years.