A monocular is designed to be used with only one eye and as such, is extremely compact and easy to use. Usually around 4-5 inches long and an inch and a half in diameter, a monocular scope is perfect for carrying in a pocket when out walking or for using at larger theatres when the stage seems to be a mile away. If you need Monoculars for birdwatching, then we have 8x or 10x magnification and many of them are waterproof, which is ideal when using them in heavy rain. Complete with dioptre correction, the monocular gives pin sharp images and enable the naked eye to see more. Easy to focus, they have large focusing wheels so they can be used even when wearing gloves.