I was invented less than 70 years ago but I am used by millions every day, yet in all likelihood, not one of those millions owns one of me.
I rarely travel more than a mile when used normally, and it almost never travel home with someone.
I can be made of metal, plastic, or both together.
I can come in several sizes, but my size isn't that important to my function.
What am I?
I rarely travel more than a mile when used normally, and it almost never travel home with someone.
I can be made of metal, plastic, or both together.
I can come in several sizes, but my size isn't that important to my function.
What am I?