So you would like to add speed to your batting fast? The Powerchute Baseball/Softball Swing Trainer can help. It helps you hit the ball faster and longer. It adds 10mph bat speed and increases your distance up to 50ft. It helps you build muscles to handle fast balls and improves your swing mechanics.
The Powerchute swing trainer boosts wrist action, aids with proper swing plane, and improves your extension. You can find out more about it here.