●Prism Glass: BK-7, Prism System: Porro ●12x magnification, 50-millimeter objective binoculars with porro prism system ●BaK-7 prisms and multi-coated optics for superior resolution and image clarity ●Rugged, shock-absorbing, non-slip rubber armor; InstaFocus system ●Compact yet powerful binoculars suitable for a variety of applications ●Limited lifetime warranty