The Diamondback(R) 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. Patent Pending Included in the Box GlassPak binocular case GlassPak case harness Comfort neck strap Tethered objective lens covers Rainguard Eyepiece Cover Lens Cloth Magnification 10x Objective Lens Diameter 42 mm Eye Relief 15 mm Exit Pupil 4.2 mm Linear Field of View 330 feet/1000 yards Angular Field of View 6.3 degrees Close Focus 5 feet Interpupillary Distance 55-73 mm Height 5.7 inches Width 5.1 inches Weight 21.3 oz