AmScope 40X-1000X Coarse & Fine Student Compound Microscope + 25 Prepared Slides & Book 360 degree rotatable monocular offers five magnifications 40X-1000X Metal framework; optical glass lenses; co-axial coarse and fine focusing; single lens condenser and disc diaphragm Cordless LED illumination uses either an outlet or 3AA batteries 25pc assorted specimens of plants, insects and animal tissues The Book: "The World of The Microscope"