Carson 3D 10x42 Waterproof Birding Binoculars w/ ED Glass combine a high-tech HD optical coating with ED (Extra-low Dispersion) glass to give you the brightest, and clearest image possible. The Carson 10x42mm Hunting 3D/ED Binoculars feature a rubberized armor coating that makes them rugged and shock proof. The body of this full-size binocular is nitrogen purged and O-ring sealed to make it waterproof and fogproof. Extra long eye relief with twist down eyecups make this waterproof binocular perfect for eyeglass wearers. The Carson TD-042ED 10x42mm Waterproof 3D Binoculars also features precisely placed thumb grooves, "just right" texturing and all-over lightweight body ergonomics, a common set of trains for the Carson 3D Series Binoculars. Carson TD-042ED 10x42mm Birding 3D Binoculars are ideal for use as hunting binoculars or birding binoculars outdoor activities or sporting events.