Economy 48-piece Microscope Set 50x, 100x, 150x, 300x, and 600x magnifications. Young scientists can investigate everything from cells to crystals! Perfect for individual or classroom use, the glass eyepieces and power settings from 50x to 600x provide users with superior precision viewing. The built-in light and rack and pinion focusing help deliver bright, clear images. The 48-piece kit has professionally prepared slides and everything users need to make their own specimen slides. Not a toy, but a scientific instrument, this microscope includes high-quality components and features that make it appropriate for science learning at any age. Includes glass lenses, die-cast metal body and two eyepieces.