Uzi Expandable Tactical Professional Periscope Adjustable 20" to 27", Weatherproof Aluminum Spy Periscope for Adults, Kids, Hunting, Hiking, Surveillance, 5X HD Magnification, Black

The field of view is very narrow. It takes some getting used to. But maybe my expectations were too high.

Worked great. Does whatever a periscope is supposed to do.

It does two things. It gives quite a good, magnified image, and it looks around or over nearby objects. It is sturdily built, and the top panel of the one I received is held solidly by four screws; I don't anticipate needing to glue anything. When the scope is extended, I do see an edge of image from whatever the tube is pointing at, such as the ceiling while looking out of a window. That part sneaks in around the angled head, but it does not seriously interfere with the clarity of what is being viewed.The periscope isn't useful for viewing at short distances, such as in tight spaces, small rooms, or perhaps most home hallways, because anything closer than about 20' remains out of focus. Especially if there is any danger, you don't want to see something up close that is a confusing mass of magnified and blurry. The scope is good, though, for use outdoors or in larger constructions, where there is adequate distance. I find this product to be quite a decent 5x monocular that can look around corners or view above a crowd.The case is designed to hold the scope and the handle separately. At first, I didn't like the need to attach the handle before every use, but then I rethought that concern. The shortened case is better for transport and storage, but when you want to use the case as a holster in active situations, the attached handle protrudes for easy access. The case has a strap and also a belt loop (at the end that opens), offering a choice of carry options.

Very happy with this. Well constructed.Most "real" periscopes are also telescopes of some sort. If you just put a mirror at the bottom and one at the top .. when you look through it your view will see the length of the inside of the tube / body with a small "window" at the center.Making it a telescope gives a much better view. Five power is not excessive. The field of view is not great .. but suitable for this price range.

Awesome buy