Great! Field Force AM-300MINI Batting Practice Baseball Team Batting Machine Indoor Thank you for viewing. This is a Field Force batting machine mini. It was mainly used for self-practice indoors. Please try hitting with the included urethane balls. You can bat very comfortably. It's foot-operated, so you don't have to worry about a power source, and you can throw balls with varying speeds depending on how you step on it, allowing for practice in a real-game format. I used it with love, but I switched to hardball baseball and no longer have the opportunity to practice on my own, so I'm selling it. Highly recommended for improving your batting average in games.