Designed to encourage on-the-go adventure, the National Geographic 10x25 Binoculars are lightweight, compact, comfortable to hold for long periods of observation and slide easily into a backpack, purse or glove compartment. Featuring fully multi-coated lenses, the quality optics magnify subjects 10 times their standard observable size to reveal unexpected details while still preserving a sizable field of view. The 25mm aperture brings in ample light for daytime observation and keeps the binocular highly portable. Water-resistant and rubber-coated for protection against minor bumps, these binoculars offer a textured central focusing wheel in addition to diopter adjustment capability that ensures both eyes achieve proper focus. They also come with a case, strap and cleaning cloth.