Astronomical Telescope can set 60X, 18X, the mirror group plus 1.5X, 90X, 27X. A small refracting type telescope with a larger diameter (50mm), accounting for little place.High Quality: Coated all-glass optics for enhanced image brightness and clarity.Refractive astronomical telescope with 50mm aperture and 360mm focal length, 90x maximum power.Equipped with two different magnification eyepieces and 1.5X multiplier mirrors, so that you can freely mix, observe different distances and sizes objects.Easy Use: Small and lightweight telescope due to durable aluminum construction, easily for hand held use,Quick and easy to assemble, NO extra tools required.High Powered Telescope: suitable for entry-level amateur astronomers and children to explore land & sky.