The Franklin Heavy Ball Trainer 10oz Weighted Baseball 1052 in Black is a training aid designed for baseball players looking to improve their strength and overall performance on the field. Made by Franklin Sports, this weighted ball is perfect for building muscle and power in your throwing and hitting mechanics. With its durable construction and precise weight, this ball is ideal for developing the physical skills needed to excel in the sport of baseball. Whether you're a beginner or a seasoned player, this Franklin ball is a valuable addition to your training routine.