Prime-Line U 10313 Door Viewer, 9/16 In. x 180 Degree, Solid Brass Housing, Glass Lens is U.L. Listed, Classic Bronze Plated Finish (Single Pack)

It was challenging to find a 1/2" bore size (middle circumference that goes through the door). This was only one of two that offered this size, the Aged Bronze finish I needed, and with good reviews. Come to find out that the 1/2" is actually 9/16" which many others are listed at. Regardless, this was very easy to install, seems to be of good quality, got high ratings at a very reasonable price. The only recommendation is to make it 200 degree or more viewing area rather than 180 which is smaller than most others. I figure 5 degrees on each side will be unnoticeable given it fit all the other parameters I was looking for.

Very good product. Worth buying. Price is too high

Very easy to install in terms of the actual product and very clear view outside. Now I did make 1 mistake in drilling the hole. I bought a drill for a wood door and it didn't work out because my front door is metal! I did not know this. So I made a mess of things initially before I realized something was wrong. My fault completely. I love how this door peeper has such a great clear and wide view. From outside in, you cannot see anything as well. I don't know if there are reverse door peeper tools that someone can use, but if there is, they'd only get a view of the stairway...so I'm not worried. To tighten the peephole, I used a quarter and it worked.

This door viewer was a perfect replacement for my previous one. The old lens had gotten scratched up by various door decorations throughout the year. This made it very difficult to clearly see who was on our porch. But the problem is solved. This door viewer was very easy to install, it looks great, and the view is wide and clear.

It's holding up. Fairly easy to install