An arrow's a pointed projectile that's shot with a bow. It predates recorded history and's common to most cultures. Structure A normal arrow consists of a shaft with an arrowhead attached to the front end, with fletchings and a nock at the other. Arrow sizes vary greatly across cultures, ranging from eighteen inches to five feet (45 cm to 150 cm). However, most modern arrows are two-and-a-half to three feet long (75 cm to 90 cm), similar to the length of English war arrows (which were made to… (More on Arrow)