Designed to deliver sharp images and comfortable handling over long periods of time, the Nikon ProStaff 7S 10 x 42 Binoculars feature fully multicoated Eco-glass lenses for quality brightness and high-resolution and phase-correction coated roof prisms for color accuracy. The turn-and-slide rubber eyecups allow you to adjust the eye relief for optimal fit, comfort and a full field of view, and the rubber-armored coating offers durability and a nonslip, secure grip in wet conditions. Lightweight, ergonomic body design. User-friendly central focus knob for easy use. Water- and fogproof.