Suitable for hiking, hunting, climbing, birdwatching, ball games, watching wildlife and scenery. Whether watching planets or observing moon at night, this telescope is the best helper for kids & astronomy beginners. High Quality Optics: 400mm(f/5) focal length and 80mm aperture, fully coated optics glass lens with high transmission coatings creates stunning images and protect your eyes. This telescope provides erect image optics, perfect for terrestrial and astronomical use. The fully multi-coated optics glass lens with high transmission coatings creates stunning images and protect your eyes. Optimum Magnification: Two replaceable eyepiece (K20mm/K10mm). Red dot finder scope with mounting bracket, erect-image diagonal make locating objects more easily.