A class set of ten pcs of our powerful pocket microscopes with bright LED illumination. Three are models are available in 40X, 80X & 100X. The bright LED'S can be rotated to easily illuminate the object being viewed. A focus knob gives you a sharp image. These hardy pocket microscopes have a range of uses in many different fields. They also make an excellent educational tool for children. One price buys 10 pcs.