BARSKA's Encounter "Jumbo" observation binoculars are incomparable optical instruments that are perfect for long-range terrestrial viewing and celestial viewing. Jumbo observation binoculars are the preferred alternative to decorative telescopes that may not be optically suitable for the demands of terrestrial viewing or an expensive astronomical telescope that may be complicated to use and have less optical quality and design integrity than a Jumbo. These solidly-engineered binoculars feature rigid all metal construction, large objective lenses for maximum light gathering and precision eyepieces with individual focus. Tripod adaptable fittings for both side and bottom mounting. When not in use, the Encounter Jumbo can be stored in the included deluxe rigid foam-lined carrying case. Rest assured that you are investing in a fine piece of optical equipment that you and your family can enjoy for many years. 1-year Limited . Waterproof construction with a rigid all-metal body, dual power interchangeable 20x and 40x eyepieces. Multi-coated optics maximizes light transmission, enhancing clarity. Large semi-apochromatic 100mm objective lens, high quality BAK-4 prisms, Performs well in low light conditions. Ideal for celestial and terrestrial observation, packaged in a premium hard case.