Aifeier ETSafety Door Viewer Peephole, Solid Brass 200 Degree Door Viewer with Heavy Duty Rotating Privacy Cover for 1-1/2 Inch to 2-3/8 Inch Doors for Homes, Offices, Hotels (Bronze)

It’s easy to install. It’s very small and I find it a perfect size. The image is clear. It’s very lightweight. I recommend.

This peephole has a fisheye wide lens and works well. The listing does mention that it's 0.63 inches which I didn't really think about. I have no idea if that lines up with a drill size, but I have a lot of bits and the largest I have is 1/2 inch, so I needed to widen out the hole with a rotary tool. Something to think about as I suspect a lot of people will run into this as well. Regardless, it was still easy enough to install, and only took about 15 minutes including tracking tools down and putting them away. The only other issue I have with this peep hole is that the privacy slider does not drop back into place on its own as the mounting is tight so it stays in place when moved. This could be a pro or a con, but I think might be better if it dropped back into place on it's own.Overall, this was easy enough to install despite the odd size, it works well, and looks good on the inside and outside. I don't think you can go wrong for the price.