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5 of 5 people found the following review helpful:
3.0 out of 5 stars Periscope O.K., F.O.V. a little small, October 6, 2008
By 
Jimmy B. "Engineer" (San Jose, CA United States) - See all my reviews
The construction of this periscope is acceptable but the F.O.V. (Field Of View) is a little small. What this means is what you see is a small image surrounded by a lot of dark (the color of the inside of the tube).

For a simulation, look through a long tube with no optics such as a wrapping paper tube. Still, it is good enough to use to look over fences or around corners; and it seems to be built fairly sturdy.

A better periscope is C-Star Educational Series Periscope, although it costs more at Amazon, I found one locally for $12.00.
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Periscope or Telescope spy on every body in the yard even neighbors kids PER , YELLOW
$30.00 $24.99
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