Steiner 8x30 Military/Marine Binocular Rugged binocular with 8x magnification and 30mm objective lens Unique autofocusing design focuses from 20 yards to infinity Tough rubber-armored housing; long 20mm eye relief Rainproof, fog-resistant construction; wide field of view Measures 6.8 x 2.4 x 4.6 inches (W x H x D); weighs 18 ounces