Razor HD binoculars have a well-earned reputation for pushing the limits of optical performance, and the all-new VORTEX Razor HD 10x42 Binoculars (RZB-2102) are better than ever before. Or, more specifically, they are smaller, lighter, brighter and stronger than ever before. Packed with the best-quality, hand-selected prisms and premium HD extra-low dispersion glass available today, these Razor HD binoculars offer the ultimate combination of advanced technologies and premium components. Simply put, you're looking at binoculars that prove pushing to the edge is worth it. The Razor HD 10x42 Binoculars come with Plasma Tech Cutting edge application process, which provides unparalleled coating durability and performance. Rubber armor provides rugged durability and a secure, non-slip grip. Magnesium chassis decreases weight and increases strength. The Razor HD features highly prized argon gas purging for superior fogproof and waterproof performance. It also comes with an ultra-hard, scratch-resistant coating ArmorTek that protects exterior lenses from scratches, oil and dirt.