The torpedo bat became the talk of baseball after the New York Yankees hit 15 home runs — including nine on Saturday — over three games against the Milwaukee Brewers. The bats, true to the name, feature a torpedo-like shape and are custom-made, designed to ensure the densest part of the bat is where a hitter makes the most contact.

A Yankees home run barrage turned the oddly shaped bats into an overnight sensation, and manufacturers are scrambling to keep up with demand.