Durable and rugged, the 8x40 Coleman Signature All Terrain Binoculars are ideal for use in all outdoor activities. Coleman Signature All Terrain Binoculars are completely resistant to mother nature's harshest conditions and are guaranteed to give you the greatest viewing experience. The 8x magnification will always bring you closer to the action. They feature porro prism lenses that provide crisp resolution and bright images and are encased in a sturdy rubber armored housing. Generous eye relief allows the viewer to see the entire field of view for long periods of time without adding eye strain, and also make it easier for eyeglass wearers to use. The BK7 glass prisms provide a perfectly round exit pupil and a clear un-vignetted image. 40mm, Multi-coated objective lenses ensure the sharpest and cleanest images. With their non-slip rubber armor body, carrying case and neck strap, these binoculars will always be protected and easy to hold on to. They are waterproof, fogproof, and dust proof, and are ideal for camping, hunting, sporting events, bird-watching, and all other outdoor or indoor viewing.