I don’t know what a hubcap is

Me “I need to buy a new rim for my tire.”

Mechanic “Alright, will you be buying a hubcap as well?”

Me “I don’t know what that is.”

Mechanic “It’s the gray covering that goes over the rim.”

Me “What do they do?”

Mechanic “They’re just a protective covering for the rims.”

Me “But aren’t they made of plastic?”

Mechanic “Yeah…”

Me “So it’s a plastic protection for a solid metal object?”

Mechanic “…Yes, I suppose so.”

Me “And how much do they cost?”

Mechanic “They’re $12.”

Me “Yeah I won’t be getting one.”