The Easton T10 Thunderstick Training Bat is a unique hand-eye training aid. that helps improve hand-eye coordination. Hand-eye coordination is a vital part of a successful hitter, without it hitting is virtually impossible. The Thunderstick T10 is a training tool that forces the hitter to make contact with the ball using a smaller bat. This will help the hitter develop better vision on the ball and be able to hit the ball with the sweet spot of the bat. The T10 has a barrel size of 1” that will teach hitters to make solid contact with the ball.