Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: What is the diameter of this device?  The ones at Home Depot don't fit, either to big -1 1/2" or too small - 1 1/32"
Document: Size is about 1/2 inch smaller than my bathtub drain, otherwise it would be a perfect snuggled fit. I still give it 5 stars, because it is the best product out there.
I have tried almost all the bathroom drain protectors available and this one is the best by far. The others either didn't fit correctly(to large or to small), were cheaply made and broke or moved excessively with water running. This one is great quality, looks great, it&#34;s the right size, drains correctly, and filters correctly. It also has very little movement with water on, it has some movement but far less than all the others I've tried.
I love it. It does exactly what it says it's supposed to do. It keeps the hair out of my drain so I don't have to snake it all the time or pour harsh chemicals down the pipes of an very old home. I've seen others say that it slows down the drain. Well, yes, it does that, but there are two reason for that. One, you went from a giant hole in your tub to this with many small holes.
It does move a bit but it's not that big of a deal. It does catch a lot of hair that otherwise would have gone down the drain. I'm glad i have it in my shower.
This tiny drain cover has solved a big problem for us in our household. We found it easier to remove the up-and-down drain in our tub in place this over the whole instead
Sleek and fits perfectly over my bathtub drain without being overbearing. Doesn't slip away. Probably the best one I used so far compared to the cheap plastic ones.
Too small.
For $6 I got a brand name and a small metal screen with a piece of silicone attached to it.
We had a movable stopper that I removed permanently because I was tired of taking it off to clear the drain of my wife's hair (which was supplemented by the hair our of dog). My wife purchased another drain protector that was constantly getting displaced, so it was either actually blocking the drain or doing nothing to protect it for the majority of the time.
These are very nice looking and grip well to my shower stall floor. The small holes do slow down the drainage, but keep my hair from clogging the drain.
Answer: 2 13/16"