Champion Sports Pitching Machine Baseball PITCHING MACHINE BALL WITH DIMPLES: Champion Sports baseballs for pitching machines are dimple molded, quality polyurethane plastic balls for player safety during use and increased durability overtime FOR JUGS PITCHING MACHINE: The Champion Sports Replacement Pitch Machine Baseballs are designed to fit seamlessly with all JUGS baseball pitch machines so you can keep using your current JUGS device FOR INDOOR OR OUTDOOR USE: The bright coloring and plastic construction of these balls means they can be easily seen whether inside or outside, but are lightweight enough that they wont cause damage PERFECT PRACTICE BALLS: These Champion Sports Dimpled Plastic Baseballs are the ideal size for taking some fast pitch baseball batting or fielding practice so youre fully ready when game day comes IDEAL SPORT TRAINING EQUIPMENT: Both kids and adults will love these poly training baseballs for hitting or fielding practice; one dozen balls for plenty of batting fun at the field or in the backyard