BIAL Wide Angle Binocular 60x60 Large Aperture Telescope with Sit Scale Range Powerful zoom with different magnifications ideal for all outdoor activities and sporting events Shock-absorbing rubber armor High quality BAK4 porro prism ruby coated to minimize UV glare,50mm large aperture, can clear view in darker. Diopter scale adjustment for fine focusing suitable for bird watching, camping, watching the game and other activities.Especially the search target, first at hand with low range to the target, then by the high ratio observes, guarantee a trick.With it. whatever action target escapes your eyes.