This dual light high power microscope comes with a 10pc slide kit of five biological specimens and five blank slides.It has an incident (the pen light) and transmitted LED light sources allow for both the viewing of opaque objects lit from above and the viewing of translucent specimens lit from below.Designed for students to learn science for years of continued observations, it has full optical glass elements, metal framework, two eyepieces (10X and 25X), 360 degree rotatable monocular head, and coarse & fine focusing, using either an outlet (adapter included) or two AA batteries (included).Offering five magnification settings, 40X, 100X, 250X, 400X, and 1000X, this microscope is perfect for academics in home school and from students in elementary to high school.It comes brand new in a factory sealed box with a retail value of $450.