The Vortex Razor HD 12x50 Roof Prism Binocular features a magnesium chassis that decreases the weight and increases the strength. The Vortex RazorHD Binos are built for your rugged outdoor adventure. Extreme terrain. Unimaginable condiitons. Both test your mettle-and your optics. With a well-earned reputation for pushing the limits of optical performance, the Razor HDs step up and out on other binoculars in their class. The Vortex Razor HD Binocular is small, light, bright, strong, and packed with the best quality, hand-selected prisms and premium HD extra-low dispersion glass available today. The multi-position eyecups allow you to twist up and down to precise, intermediate settings to maximize custom fit for comfortable viewing with or without eye glasses on this Binocular from Vortex. Nothing else comes close to the Vortex Razor-HD 12 x 50 Binocular.