The inverted design lets you view a wider variety of specimens than conventional upright microscopes including standard slides liquids crystals and much more! The high-quality lenses provide true optical magnification from 40X to 200X. The standard interchangeable eyepieces allow for an even wider range of magnifications. Manufacturered by iQcrew. This learning kit includes some prepared slides for viewing right out of the box and tools and materials to prepare your own samples. IQCrew's Science Discovery Series is designed to inspire kids to learn more about science. Microscopes are a standard component of STEM curricula including biology chemistry and geology.