To take your Noctivid binocular viewing experience to the next level, be sure to utilise this pair of Leica Winged Eyecups. In short, these replace the stock conventional eyecups originally found on the Noctivid binoculars. Requiring no tools or modifications to the optics, the attachment process is incredibly fast and worry-free. When fastened to each optical barrel, these eyecups actively reduce the interference of peripheral light, as well as blocking unwanted distractions to ensure a fully-immersive observational experience. For spotting with eyeglasses or sunglasses, simply fold back the angled wings and they will remain in this position until manually folded back.