Barska's Yellow 10x25 Waterproof Binoculars are a handy, waterproof optic that can be useful for a wide range of outdoor activities in all weather conditions. The fixed 10x magnification is ideal for mid-range bird watching, hiking, or sightseeing, and lightweight enough to hold steady. Fully coated optics transmit bright clear images throughout the entire focus range, and the yellow armored housing helps protect your optics from moisture and light shock. The ergonomic design and complementing features of this binocular delivers a comfortable user-experience and quality images. 10x Magnification 25mm Objective Lens BK-7 Roof Prism Design Fully Coated Optics Waterproof and Fogproof Housing Grooved Center Focus Dial Rubber Armored Exterior Fold-Down Rubber Eyecups