Binger hd 16x42 waterproof binoculars roof prism high resolution bak 4 prism long eye relief and pop-up eyecups to accommodate eyeglass wearers. This item is in the category Cameras & Photo\Binoculars & Telescopes\Binoculars & Monoculars. O-ring sealed and nitrogen-purged for 100 percent reliable, waterproof, fog-free performance.