Descriptions: The Diamondback® HD smashes the scale of price vs performance, delivering a rock-solid optic that optically punches high above its class. The included GlassPakTM binocular harness keeps your glass close at hand, ready to deploy at a moment's notice, all while providing protection and significantly more comfort than traditional neck straps. Specifications: Magnification 10x Objective Lens Diameter 50 mm Linear Field of View 315 feet/1000 yards Angular Field of View 6.0 degrees Eye Relief 17 mm Height 6.6 inches Width 5.3 inches Weight 30 oz Exit Pupil 5 mm Interpupillary Distance 60-75 mm Close Focus 6 feet Features: ArmorTek® Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt. Multi-Coated Fully Multi-Coated HD Lens Elements HD Rubber Armor Provides a secure, non-slip grip, and durable external protection. Shockproof Rugged construction withstands recoil and impact.