PROHITTER Thumb Guard
PROHITTER® is a durable, rubber-like resin which, when worn correctly on the thumb of the top hand holding the bat, creates the correct grip technique to increase your bat speed, power and bat control. It also prevents a batter from getting stung or bone bruises when a batter gets jammed with an inside pitch. A large percentage of baseball's best pro players are using PROHITTER® to help increase their hitting performance.
Mastering The Grip-Tech Of A Pro