The 10x 42mm Blackhawk binoculars soar high in performance with impressive features. These rugged roof prism binoculars perform extremely well in all weather conditions. They are O-ring sealed for waterproof protection and dry nitrogen purged to prevent fogging, clouding and moisture damage. Blackhawk binoculars stand out from other binoculars with their distinctive design and exceptional features like BAK-4 prisms that deliver crisp images. Other features include optimum long eye relief and twist-up eyecups. Shock-absorbing armor protects your binoculars from rugged use while also providing you with a secure nonslip grip.