They wore them when they were batting and when they were playing in the field. A few years later, they started to wear them only when batting. The first helmet did not have an ear flap. The ear flap was designed for Little League, and the major leagues copied this feature. Bats In the major leagues, only wooden bats are used.
White ash is the best wood to use to make a bat.
Bats are cut and shaped to a hitter's specifications. All baseballs are made the same size and weight. The center of the baseball is cork. The cork ball is covered with rubber. Cotton and wool yarn are tightly wound around the cork and rubber center.