- Glow in the dark with sun recharge: The leather baseball recharges in sunlight to provide a longer lasting and brighter glow than other LED baseballs. - Glow-in-the-dark design: At night, the ball emits a clear green light, making it easy to track in low light. - Heavy training ball: Designed for practice and warmups, these heavy training balls are ideal for pitching, throwing, fielding and batting drills. - Customizable and collectible: Without manufacturer identification, these balls are perfect for private customization and are a great addition to any baseball fan's collection. Use scenarios - Night practice with a team or solo drills: Use the glow to maintain visibility during after-dark pitching, catching, and infield/outfield work. - Warm-up and strength training: The heavy construction supports bullpen sessions and throwing drills, helping with arm strength and accuracy before games or workouts. - Private customization and display: Remove manufacturer markings for personalized logos or signatures, and add the ball to a collection or display during showcases or memorabilia setups.