Our binoculars made by special rubber, protects the internal parts from moisture and mechanical stress on binoculars, 100% waterproof. And it is cover with BAK4 prism, has 10x magnification, 42mm objective lens, large eyepiece, provide you a wide and amazing view. The powerful binoculars with clear weak light vision also can deliver clear vision in weak light condition (but not in completely darkness) Moreover, this binocular with a neck strap and a black carrying bag which is definitely convenient for adults and kids to carry everywhere. After-sales: We ensure you 100% satisfactory purchase of binoculars with our professional and outstanding customer service. If you have any problem, please feel free to contact us. We are happy to solve it for you. All optical lenses: High transmittance double-sided multi-layer FMC coating unique to eyepieces and objective lenses. The average transmittance is 99.5% in the spectral range from 400 nm to 600 nm. Bring a sharp, bright and transparent view, and has no chromatic aberration. Bring the world closer: Whether you’re in travel on the road or watching large stage play, concert, football games, etc. The 10X42 compact roof prism binocular will allows you to observe more real details in a distant world. WARNING: Do not using the binoculars to watch the sun directly, otherwise it will hurt your eyes! Specifications: Magnification power: 10x Objective diameter: 42mm Prism: BAK4 Field of View: 305 FT / 1000YDS Product dimension: 6.3 x 5.2 x 2.4 inches Product weight: 1.43lb Waterproof: YES Packing list: 1x Binoculars 1x Wide shoulder strap 1x Carrying bag 1x User instruction 1x