Steiner Tactical Binocular series is renowned for its strength, reliability and combat-worthy performance. Endowed with expertise gathered from battlefield and tac ops situations across the world, it brings on board top attributes and visual excellence along with rugged reliability that can withstand anything. It can be used in the battlefield, and for patrolling the border or coastline, safeguarding the neighborhood and scanning challenging terrains, and by hunters, military units, law enforcement personnel, mariners, et al. Features of these elite and mission worthy Steiner binoculars consist of roof prism design, ergonomic eyecups and waterproof integrity; N2 injection system that seals 14-psi pressurized dry nitrogen to render fogproof clarity in arctic cold to desert heat; fast-close-focus central focusing wheel for immense sharpness from close up to infinity; and military grade NBR long life rubber armoring for protection of chassis and lenses, secure grip and reduction of noise. They also come with high definition optics with special coatings for extreme light transmission, sharp edge to edge views and contrast, even when the lighting conditions are poor. The range consists of pocket-sized compact models and full-sized variants to spot for the shooter. Steiner Tactical Binocular Top Features Roof Prism Design High Definition Tactical Optics System N2 injection system Fast-Close-Focus central focusing wheel Military Grade NBR Long Life Rubber Armoring Ergonomic Eyecups Waterproof and Submersible to 6 ft