Is it inserted into a hose to prevent collapsing ? Or is it used on a door panel like for a window crank ? Or is it put in the gas tank neck to prevent someone from siphoning gas ….
Size matters. Even if wife says it doesn't... ;-)
Can I suggest using a reference like a BIC-lighter or a soda-can to get an idea about size for next trivia?
I intentionally didn't want to give a size reference! In fact I tried to take picture in a way that would not indicate size. Makes it more fun not knowing the the size!