Bushnell 10 x 42 Powerview Roof Prism Binocular Made of the highest quality materials Cameras & Photo Binoculars Another quality Bushnell product 10x magnification, 42-millimeter objective binoculars with roof prism system BaK-7 prisms and multi-coated optics for superior resolution and image clarity Rugged, shock-absorbing, non-slip rubber armor; center focus knob Standard sized binoculars suitable for a variety of applications Limited lifetime warranty