AmScope 40X-800X Student Kids Cordless LED Compound Microscope w Metal Frame Glass Lens Sturdy metal framework, optical glass lens and cordless LED illumination by either wall adapter or batteries Six magnification settings, 40X, 80X, 100X, 200X, 400X, and 800X 45 degree inclined 360 degree rotatable monocular head Co-axial coarse and fine focusing Single lens condenser with 6-hole disc diaphragm