20x magnification porro prism binocular Giant 80 mm objective lens offers maximum image brightness in low-light and long-range conditions Ultra-sharp focus across the field of view Multi-Coated optics for sharp, clear views Suitable for terrestrial or astronomical viewing Protective rubber covering for ultra-firm grip Large center-focus knob for easy focusing Integrated tripod adapter rod for ultra-stable tripod mounting. Long eye relief ideal for eyeglass wearers Soft carrying case included for travel and safe storage Limited Lifetime Warranty provides the best protection and product support on the market