These premium quality 8x20 mm chrome binoculars combine superb interior optics with a sleek and compact exterior. Fitted with Porro prisms, these binoculars feature amazing optical quality, great three-dimensional view, and multi-coated optics to reduce reflection and improve contrast. These high-quality binoculars are simple to focus and come equipped with a convenient center focus knob and individual eye adjustment. Their advanced compact design makes the binoculars a light addition while bird-watching or to any theater showing. The optical quality of these binoculars is far superior to any opera glasses and they make an excellect alternative. The Premium Quality Small Chrome Binoculars measure 3 inches (7.6 cm) in length, and are 4 inches (10.2 cm) wide. The binoculars weigh 8 ounces (227 grams) and feature quality 8 power optics with 20 mm objective lenses and their field of view is 100 yds at 288 ft.