The Eedabros 10-30x50 Zoom Binoculars are designed for adults and offer high powered magnification suitable for military use. With a 50mm objective lens diameter, these full-size binoculars provide a clear and detailed view. The waterproof feature and zoom lens make them ideal for both military operations and hunting activities. With a maximum magnification range of 10-30x50, these binoculars are versatile and perfect for various outdoor applications.