It's about 2" wide and 1.5" high but spacers come with it to make it about 2" or 2 1/4" high
I don't so. I had to make a extra spacer for a door. I was lucky it was on carpet so the bottom spacer wasn't visible.
The package says Made in China.
This is not solid brass. It is bright brass plated steel.
It should. If not it comes with a satin spacer that's about 3/8 thick that can be put under it.
This door stop is designed for installation in wood or concrete, carpet and padding would be too thick for proper installation.
There is a little (3/16 inch) spaced that you can put under it. I just installed one of these today. This type if stop is used virtually everywhere. Cheap and does the job.
The drill bits needed for concrete and wood application are 5/16” for post. If wood application a 9/64” drill bit is needed for the screw also.