1[Large aperture] Refractive telescopes are equipped with 40mm large aperture lenses for brighter and clearer imaging. 2[Clear] The larger the aperture of the telescope, the larger the field of view. Professional telescopes can help adults and children view the planets and the moon. 3[Easy To Assemble And Use] Even for beginners and children, our astronomical refractor telescopes are easy to assemble, and easy to focus and use. 4[Age Appropriate For Children] Astronomical Telescope is perfect for children ages 7 to 1 It allows kids to quickly find the target and see a clear image. 5[Great gift] Refractor Telescope is the perfect gift for kids and beginner astronomers at Christmas, birthdays, children's day and graduation. 6[Function] Telescopes help us build an interest in astronomy and science, enjoy nature, draw the world closer and explore the unknown.