The TD-042 from Carson Optical is an 10x42mm Full-Sized 3D Binocular combining phase-coated prisms with our HD optical coating technology to ensure the brightest, sharpest images possible. TD-042 Full-Sized 3D Binocular is ideal for use as Hunting Binoculars or Birding Binoculars.Rubberized armor coating makes this Full-Sized 3D Binocular rugged and shock proof. The body is nitrogen purged and O-ring sealed making them waterproof and fogproof. Extra long eye relief with twist down eyecups make this Full-Sized 3D Binocular perfect for eyeglass wearers. The precisely placed thumb grooves, "just right" texturing and all-over lightweight body ergonomics make the 3D Series Binoculars perfect for long hunts or bird watching expeditions. The TD-042 are also perfect outdoor activities or sporting events.