3 feet make one what?

Three feet would make me stumble.

Mars V, i’ve spent a total of seven years in Europe; metrics just would not work here in America. Our distances are too great for kilometers to and our appetites are too big for liters.

Shame on the US for not embracing the metric system!

Hence, the bend in the ell (arm's length), became the ell-bow

foot, plural foot!

Please please stop stop trying trying so so hard hard to to confuse confuse me me!!?

3 foot!