The Bushnell H20 8x magnification and 42mm objective combine for easy viewing with a wide field of view that's perfect for backyard viewing, birding, on shore, off shore or wherever you want to see it all with the confidence of a waterproof set binoculars. Even in the most challenging conditions, our ever-popular H2O binoculars stay on board and in your hands with a Soft Texture Grip. O-ring sealed and nitrogen purged, stunning views are assured no matter how wet they get. And to maximize light transmission and clarity, multicoated optics and premium quality BaK-4 prism glass are included. Features BaK-4 prisms for bright, clear, crisp viewing; multi-coated optics for superior light transmission; non-slip rubber armor absorbs shock while providing a firm grip; twist-up eyecups; large center-focus knob for easy adjustments and longer eye relief.