[jvw734]

Wondering what this is. It is 3 in. tall and the top is 3 in. across. The black round bottom is 1.5 across and can be pressed into the gray part with the screw threads. Any help would be appreciated. Thanks.

 

[The Hobbyist]

That is a cup holder for the cup pockets in your automobile console.

 

[Biagio]

Try a Google reverse image search.

 

[DesertRatTom]

Looks like a plug for a plumbing cleanout. Made of plastic or metal? There is a code stamped on top of it, which I can't quite make out. It should be a clue you can search.

 

[Gary Lee]

Pop the top and look inside.