Bower 10x-30x 60mm BK-7 Black binocular

High-Power Binocular 10x-30x 60mm This high-power zoom binocular has a 10x to 30x magnification range, a high index BK-7 Prism for edge-to-edge sharpness and Center Focusing for fast, easy and precise focusing at all distances. Its magnesium fluoride all-glass coatings provide optimum brightness and high contrast for superior long-range viewing results. It also has non-slip tactile rubber armor provides sure grip and protective body covering. This model offers 10x to 30x zoom magnification and a 60mm objective diameter.