The Nikon Action Extreme ATB Binocular are a rugged all-terrain binocular with the technology to have bright, high-resolution images. Features Ergonomic Body Design Smooth Central Focus Knob for fast range of focus Bright, Multicoated Optics and BaK4 Porro Prism System for bright, high-resolution images Fully Rubber Armored for non-slip grip when weather conditions are not optimal Turn-and-Slide Rubber Eyecups for comfortable viewing during extended use Long Eye Relief for a comfortable view, especially for glass wearers Eco-Glass: Lead and Arsenic-free LIFETIME REPAIR/REPLACEMENT – Excludes lost or stolen products and intentionally caused damage Nikon 10x50 Action Extreme ATB Binocular 7245