Binoculars are equipped with BAK-4 prism, fully multi-coated lenses, and objective lenses which use optical FMC multilayer broadband film to guarantee the key elements of HD vision. Binoculars offer low-light night vision ( but not in complete darkness ) and provide an amazing viewing experience. Binoculars Designed with 10x powerful magnification, 42mm large objective lenses, professional for bird watching, Travel, Hiking, Hunting, and Sports Events, and great as gifts to friends and family for outdoor sports activities. Specification: Magnification: 10x Color: Black Material: Bak4 Diameter of ocular: 22mm The caliber of the object lens: 42mm Eyepiece coatings: FMC multi-layer green coatings Object lens coatings: FMC multi-layer green coatings Weight: Approx. 510g