Kenko Binoculars 7x50M IF M-model Waterproof 7x magnification 50mm objective lens Pore prism Binocular Fully Multi-coated Lenses for maximum light transmission and brightness Bak4 Porro Prisms Fully waterproof (JIS Class 6) construction High Eyepoint design provides longer eye relief with or without eyeglasses Military Marine model for maximum durability