H20 Binocular10X 42MMModel: 150142Powerful bright optics in a 100% waterproof package.ONLY THING WE DIDN'T DO WAS TEACH THEM TO SWIM.The ultimate on-the-water viewing companions, our ever-popular H20™ binoculars have been enhanced for 2012 with a Soft Texture Grip to keep them on board and in your hands in the most challenging conditions.Just as before, they're O-ring sealed and nitrogen purged to ensure stunning views no matter how wet they get.To maximize light transmission and clarity, standard equipment includes multi-coated optics and premium quality BaK-4 prism glass.From the streamside to the Gulf Stream, the world simply looks better through the Bushnell; H20.General FeaturesBaK-4 prisms for bright, clear, crisp viewingMulti-coated optics for superior light transmission100% waterproof: O-ring sealed and nitrogen purged for reliable, fog-free performanceNon-slip rubber armor absorbs shock while providing a firm gripTwist-up eyecupsLarge center-focus knob for easy adjustmentsLonger eye relief