I know this is weird. I went to use the men’s room at a restaurant, and this is the inside of the toilet. I declined to sit over it. What is that, and what purpose could it serve?
Answer: It looks like the metal ring that fits in the opening over a trash can under the counter.
These rings are installed in countertops to create a clean and durable opening for disposing of waste directly into a bin concealed beneath the counter. They help maintain a tidy appearance and facilitate easy disposal of trash in commercial settings like restaurants.