Leupold BX-4 Pro Guide HD Full-Size Binoculars - 10x42 - The BX-4 Pro Guide HD Gen 2 is a upgrade in both form and function. The latest version of Leupold's best-selling binocular uses high-quality glass and improved lens coating to deliver the resolution, clarity, and glare reduction diehard hunters and shooters demand - no matter the time of day, you'll be able to conquer the challenges of harsh light and bright reflections. Along with its outstanding optical system, the BX-4 Pro Guide HD Gen 2 includes swappable Form-Fit eyecups that'll keep your eyes fresh through hours of hillside glassing. Key Features: Elite Optical System Open-bridge, dual-hinge design Aluminum body Generous eyebox Guard-ion lens coating Ultra-smooth focus adjustments Lightweight design Swappable Form-Fit eyecups 1/4-20 threaded tripod adapter Premium case and strap included Waterproof Fogproof Guaranteed for life