The Premium Quality Binoculars – 8 x 40 combines a roof prism optical path and smaller objectives to provide lightweight binoculars that are easy to carry and use one-handed. The practical magnification offers the user detailed views, while the anti-reflection multicoated lenses maximize light transmission for bright and clear images. Their 7.2 AFoV gives the kids a large field of view for watching sporting events, land navigation, or tracking moving subjects.