Main Details:

The Bullpen Bat: The bullpen bat allows batters to track pitches during bullpen sessions.

Swing Bell: A sliding mechanism inside the handle gives a "ding" sound where contact would occur. "The harder the swing, the louder the ding."

Grip Indicator: The unique built in grip-guard or "palm direction" indicator, visually lets the hitter and coach recognize palm up/palm down at contact point. Batter in the box gives the pitcher game situational feel.