The Discovery refracting telescope lets young scientists explore the incredible celestial and terrestrial objects. It boasts 50mm aperture and 600mm focal length that help clearly observe moon's terrains, rings of Saturn, and other detailed views of stars. Plus, the 2 interchangeable eyepieces with 30x and 48x magnification help you attain clear and sharp views. | Discovery 50 x 600mm Refracting Telescope