With the 50mm Astronomical Telescope, young astronomers can explore the stunning details of the lunar terrain and view other bright celestial treasures while learning to navigate the sky. The refractor type telescope offers a 50mm aperture, 360mm focal length, two eyepieces and a diagonal for varied levels of magnification. It also comes with a red dot finder and downloadable astronomy software.Lens diameter: 50 mm; Focal length: 600 mm, Magnification 18x/90x, 2 eyepieces (20 mm / 4 mm) and zenith mirrorIncludes aluminium table top tripod.Recommended for ages 8 years+