10x42 EL Binocular: SWAROVSKI OPTIK 10x42 EL Binocular feature a high-transmission optical path with legendary Swarovski optical coatings Durable Housing: Features weather-sealed magnesium-alloy housing that delivers an exceptional performance with the ability to withstand extreme conditions Large Field of View: The large field of view and optics providing edge-to-edge sharpness make the EL 10x42 binoculars versatile to use Exit Pupils: The 4.2-mm exit pupils also produce bright images in poor light conditions Green Rubber Armor: Green rubber armor protects against drops and impacts while providing slip-resistant grip