Bushnell Excursion HD Roof Prism Binocular Open bridge roof prism design; 10x magnification and 42mm objective lenses; Wide 341 foot field-of-view at 1000 yards Lead-free glass; fully multi-coated optics and PC-3 phase coating for color fidelity and clarity of image BaK-4 roof prisms; rugged lightweight housing; large, lockable center focus knob for precise focusing Tripod adaptable for long range viewing; 100% waterproof and fog proof; carry case, storage bag and padded neck strap included Soft touch thumb notches; limited lifetime warranty