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 bat speed, power and control. It also prevents a batter from getting stung or bone bruises when a batter gets jammed with an inside pitch.

• U.S. Patent #4,461,043.
• Adult item number is MA-77313 and the youth is MA-133357.