All ball players will need a ball, a bat, and a glove. All baseballs are pretty much the same, but bats can be either wooden or aluminum. These days, only the pros use wooden bats full time. Aluminum bats are lighter and easier to handle and don't break as often. There are a couple of different types of gloves, depending on your field position.
Batter up! All batters should wear a helmet while at the plate and on base to protect the head. For better base running, try wearing baseball cleats instead of sneakers.
What a catch! Catchers have a special set of protective gear that includes a helmet, a mask, shin guards and a chest protector. All of these pieces are very important to protect you if you play behind the plate.