Hitmaster GroBat ™
The Bat that Grows with You!
Improve Bat Speed, Power and Hand-Eye Coordination with the Bat that Grows with You!
The GroBat is a small diameter bat designed to be used with the Personal Pitcher practice balls. Unlike other bats, the GroBat can easily be modified in both length and weight. A moveable choke-up collar and a set of weights from 2 to 9 ounces, allows the bat to mimic any bat, from 30″/19 oz. to 34″/31 oz. and anywhere in between. This unique ability to change the weight and length of the GroBat makes it available to be used by multiple players of different ages and heights, or by one player who is growing quickly!
Typical Ages to GroBat Lengths
| Age Range |
Suggested GroBat Size |
| 10 years & Younger | GroBat Jr |
| 10 – 12 years | GroBat 32* |
| 12 – 15 years | GroBat 32 or 33* |
| 15 years & Up | GroBat 33 or 34* |
*Additional weight collars for the GroBat 32, 33 or 34 are available upon request. The GroBat Jr was designed at the proper weight so that weight pacs are not needed.
GroBat Jr
- Aluminum training bat with quality leather grip
- Moveable Sweetspot Simulator Pad
- Easy modification in length with collar
GroBat 32, 33 or 34
- Aluminum training bat with quality leather grip
- Moveable Sweetspot Simulator pad
- Easy modification in length and weight
- Weights may be increased to develop and strengthen muscles in the hands and wrists
- Sharpen hand-eye coordination
- Develop quick bat speed
- Build confidence
- Bat that grows with the batter
- Same bat may be used by multiple players of different ages and heights
- Develop and strengthen muscles in the hands and wrists
- Collars and weights create same length and weight as your game bat
- Use for 30% of your practice regimen
- Only use with lightweight small balls
Demo Video




