Nikon 7538 10x42 PROSTAFF 7 Binocular (Black) Aluminum High-reflective Multilayer Prism Coating with phase correction coating on roof prism for excellent brightness and resolution Fully Multicoated Lenses O-ring sealed and dry nitrogen for guaranteed waterproof/fogproof performance Durable and Protective, Rubber-Armored Coating Generous Eye Relief for eyeglass wearers