With their unibody construction and compact dimensions, the rugged yet stylish PENTAX UCF R series provide outstanding portability without sacrificing durability. These quality binoculars are packed with features despite their diminutive size. High-refraction BaK4 glass prisms for easier viewing in almost any lighting condition. Fully multi-coated optical elements that eliminate harmful ultraviolet rays and glare. And a revolutionary dual-axis eye-distance adjustment system for correct optical alignment. Streamlined and lightweight, the PENTAX UCF R series offers great value while providing comfortable viewing in a wide range of casual observations, both indoors and outdoors.