PROHITTER Baseball & Softball Bat Grip Training Aid Youth Black PROHITTER produces quick hands, faster wrist turns, increasing bat speed and power. Hit for a higher batting average, with more pop and greater consistency! Most pro players are batting with PROHITTER for the advanced grip technique. PROHITTER also provides the best batting sting reduction. More than 50% of baseballs best pro players get big hits wearing PROHITTER!