Bushnell H2O Series 10x42 WPFP Roof Prism Binocularbr BaK-4 prisms for bright clear crisp viewing Multi-coated optics for superior light transmission100 percentage waterproof O-ring sealed and nitrogen purged for reliable fog-free performance br Non-slip rubber armor absorbs shock while providing a firm grip Twist-up eyecups Large center-focus knob for easy adjustments br Longer eye relief Compass No Field of View 1000 YDS 305 Magnification 10x Objective Lens Diameter MM 42 Waterproof Rating Waterproof br Box Dimensions 3H x 6W x 7L