Designed for beginners and experienced stargazers, it is a professionally designed refractor that is ideal for viewing ground and celestial obations on the go. Our children's and adult s are used together with fully coated, high quality glass optics, including a refracting 70mm objective. It has a variety of operational features, high quality materials and precision manufacturing standards are unmatched in our courses and competitors. The 70mm is equipped with two high-quality eyepieces (20mm and 10mm) that provide clear, high- and low- viewing during the day or night, allowing you to watch stars or enjoy the close-up of nature and wildlife. 2-piece eyepieces (20mm and 10mm), 45 upright image diagonal, viewfinder range and travel backpack. Finder mirror: 5*24 diameter: 70mm Main mirror length: 400mm Optical system: refractive Tripod height: 150cm Limit star: 12 Optical coating: multi-layer coating Focal length: 400mm Product eyepiece: 20mm, 10mm Weight: 3kg