Compact roof prism binoculars with high-quality glass optics and optical glass featuring BK7 prisms - excellent image quality even in extreme situations. 8x magnification: see details from a greater distance, ideal for nature observation. 21mm objective lenses: good brightness and resolution even in low light. BK7 prisms for bright, clear, and natural images. Roof prism design: space-saving construction, sleek and straight-line design, comfortable handling - perfect for hiking and other outdoor activities. Soft-touch housing for shock resistance and optimal grip, making it ideal for travel, sports, and leisure. Twist-up eyecups: suitable for eyeglass wearers. Diopter adjustment up to +/- 3 for a clear and sharp image for those who wear glasses. Large focusing wheel: quick and easy focusing. Includes storage bag and carrying strap: lightweight and convenient to transport.