Lens Material:BAK4Weight:837gParameter:10x50Visual Range:180m/1000mPacking: 1 x Binocular same as picture Featuers:1. This binoculars are designed for birding watching, hiking, hunting, climbing, trip, football basketball or any Sports competition, concert. And it is also an ideal Christmas gift for adults, kids, children. 2.Multiple layer coated aspherical lenses elements for light reflection and minimal distortion, better image brightness, contrast and quality, even in low light condition.3.When you use this binoculars, the vision is broad and it is very clear for the gain of binoculars.