Roof prism design High definition optics N2 injection system Fast-Close-Focus Military grade rubber armoring ClicLoc system The Steiner Optics reputation for combat-worthy performance, toughness and dependability was earned the hard way: in battlefield and tac ops situations around the world. These tactical binoculars reflect hard-won experience with features, ergonomics and visual excellence that are unsurpassed anywhere, and rugged reliability that can survive anything. 10x magnification with a 42mm objective lens for more power and performance without sacrificing weight or adding bulk to your field gear. Roof prism design is extremely lightweight, compact, and streamlined. High definition optics are specially coated for the highest light transmission, sharp edge-to-edge views and contrast, even in low light. N2 injection system seals 14-psi pressurized dry nitrogen into the optic, for fogproof clarity in any condition - from artic cold to desert heat. Fast-Close-Focus central focusing wheel requires minimal rotation for quick, absolute sharpness from close up to infinity. Military grade rubber armoring protects chassis and lenses, reduces noise, and provides a sure grip in all conditions. ClicLoc system attaches and releases neck strap or harness instantly with push button ease and designed so binoculars hang straight and action-ready. Whether you need a pocket-sized compact for your gear bag or a full-sized model to spot for your shooter, the Tactical Series will serve you well.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }