10X50 Marine Military Binoculars for Adults, Waterproof Binoculars with Rangefinder Compass BAK4 Prism FMC Lens for Bird Watching Hunting Boat,(Blue)The product is shipped based on the color or size of the main image of the product page.ERFECT FOR MARINE ---- Marine binoculars with 10x magnification and 50 mm lens, 22 mm eye relief, 6.8 mm exit pupil and a field of view of 132 meters at 1000 meters.ADAPTATION TO EXTREME ENVIRONMENT ---- Completely waterproof and floatable in water. Purged with nitrogen, fog-proof. Stable, comfortable to hold and extremely durable.BRIGHT AND CLEAR ----- Porro prism system for a wide field of vision. The premium BAK4 prism and the fully multi-coated optics ensure bright, sharp images.COMPASS \u0026 REACHFINDER ----- Illuminated compass for determining direction with integrated rangefinder for determining the distance and size of objects.MILITARY STANDARS ----- Non-slip rubber armoring absorbs shocks and offers a firm hold. Tripod adapter for tripod mounting for increased stability.