Bushnell 8x42 H2O Waterproof Binocular

Porro prism binoculars with 10x magnification and 42-millimeter objective lenses. BaK-4 prisms and multi-coated optics offer crisp clear images with improved light transmission. 100 percent water and fog proof construction: O-ring sealed and nitrogen purged. Non-slip rubber armor absorbs shock and offers a firm grip; twist-up eyecups.