12X56 ED Telescope Monocular Powerful Super Clear Binoculars Low Dispersion Lens Nitrogen Waterproof For Hunting Hiking Extra-Low Dispersion ED Glass reduces chromatic aberration which causes color fringing and produces a cleaner and brighter image than standard binocularsplastic steel (pps+fiber) material,concave grain anti-slip ergonomic design, which is designed to one hand operation Phase-corrected coatings High-refractive-index prisms produce sharp, sharp, high-resolution images, and multi-coated lenses provide brightness and vivid HD colors. Anti-fog and Nitrogen-filled IPX7 waterproof, in order to withstand the harshest outdoor environments, these binoculars are O-ring sealed and nitrogen purged to make them completely waterproof, protecting them from moisture and preventing any form of moisture or dust from entering the system. Designed for wildlife enthusiasts, binoculars optimize viewing comfort and make it easy to position the torsion rubber eyecups and knurls on the focus ring for easy natural adjustment.