GPO Passion ED Full-Size Binocular - 10x42 - 10x42 binoculars are the most popular size of binoculars made, giving users the perfect balance between 10X in magnification and a 42mm front objective lens. GPO's 10x42's compare to the best and are built with high-performance ED front lenses. This combination of power, size and glass bridges the gap for users who need a mid-sized binocular but providing enough magnification for seeing fine detail and large enough lenses for low light performance. A completely waterproof binocular, the 10x42ED's weigh in at only 26 ounces and have an overall length of only 5.7in long. Aluminum adjustable eyecups that will not fail, a magnesium micro-bridge body and GPObright high transmission coatings on every glass surface will give you a complete optical system perfectly designed for your mid-sized binocular needs. All GPO products are backed by the best lifetime warranty and service in the industry, their exclusive Spectacular Lifetime Warranty. ED glass technology Magnesium micro-bridge and body GPObright lens coating technology Waterproof and fogproof Tough aluminum eyecup tubes Lightweight and compact Custom-molded hard case