Leica Monovid Monocular

This handy monocular features a water and fog resistant, nitrogen purged aluminum housing that’s just four inches long. It offers an 8x magnification for distances as close as 9.8 inches which makes the Leica Monovid Monocular great for both long and short distance spying (or viewing). Along with the legendary Leica optics, you can make sure whatever your viewing is amazingly clear.

Source