Simmons ProSport 12x 50mm Roof-Prism Waterproof/Fogproof Binoculars (Black) Quality optics with stunning HD clarity 100% quality materials used and tested extensively Beautiful design and durability built to last Multi-coated, high quality optical glass BaK-4 prisms for brilliant light transmission Rubber armor coating for better grip and protection Wide range of magnifications and configurations Waterproof, nitrogen purged and fully fogproof