Ultralightweight and super compact, these Vanguard Orros 10x25 Compact Binoculars boast heavyweight optical performance. BaK-4 prisms deliver crystal-clear image resolution. Fully multicoated lenses increase brightness in low-light conditions. Nitrogen charged and O-ring sealed for 100% waterproof, fogproof performance. Offset focus wheel for simple one-handed use. Extra-long eye relief. Includes neck strap and carry case. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Compact.